Kansas CDL Hazmat cheat sheet
Kansas CDL Hazmat · Keep the key ideas within reach.
Hazardous Materials Endorsement (H) Knowledge Requirements
An H endorsement is required to drive a CMV transporting placarded quantities of hazardous materials, and it is added to a Class A, B, or C CDL; it cannot stand alone.
The hazmat knowledge test is a separate written test from the general CDL tests; passing it requires a score of at least 80 percent, and it must be retaken at each renewal.
The hazardous materials table (49 CFR 172.101) assigns each material its hazard class, UN/NA identification number, packing group, label codes, and required placards.
Placards are required for 1,001 pounds or more aggregate gross weight of a single hazard class, for any quantity of a Table 2 material in the placarding table, and for bulk packages.
Class 1 explosives are divided into six compatibility groups for mixed loading; Division 1.1 through 1.3 generally may not be loaded with detonators or with Division 1.5.
Shipping papers must accompany the shipment, be within the driver's reach while seated, and be kept in a pouch on the driver's door or in clear view when the driver leaves the cab.
A hazardous materials endorsement holder must report to the employer any suspension, revocation, or cancellation of the endorsement, and must not operate a CMV hauling hazmat without a valid endorsement.
The security threat assessment (STA) required for the H endorsement is conducted by TSA; a disqualifying criminal history or a finding of not being a lawful permanent resident results in denial.
Rail crossings, tunnels, and populated areas may restrict hazmat routes; the driver must follow designated routes and stop requirements and may not smoke or carry a firearm while operating a placarded vehicle.
Entry-Level Driver Training (ELDT) for the Hazardous Materials Endorsement
ELDT for the H endorsement is required before the applicant may take the state hazmat knowledge test; training must be completed by a registered training provider.
The H endorsement curriculum covers basic introductory hazmat content, operational requirements, and reporting and recordkeeping, plus a security awareness module.
The training provider must be listed on the FMCSA Training Provider Registry, and the provider submits the driver's completion record electronically to the registry.
The H endorsement theory curriculum requires a minimum of 20 total clock hours of instruction across the three required units.
ELDT completion for the H endorsement does not expire for purposes of taking the knowledge test, but the endorsement itself must be renewed and the knowledge test retaken at renewal.
A driver who already holds the H endorsement and is only renewing or transferring it is not required to repeat ELDT, but must still pass the knowledge test and the TSA security threat assessment.
ELDT is required for the H, N, P, and S endorsements and for the Class A and Class B CDL, but not for the Class C CDL or for the M endorsement.
The training provider must assess the driver's knowledge before certifying completion; self-certification by the driver alone is not sufficient.
Medical Examiner Certification Requirements for CDL Holders
A CDL holder must be examined by a medical examiner listed on the FMCSA National Registry of Certified Medical Examiners and must carry a valid Medical Examiner's Certificate.
The medical examiner completes the MCSA-5875 (Medical Examination Report) and issues the MCSA-5876 (Medical Examiner's Certificate) with an expiration date not to exceed 24 months.
A driver with a medical variance (such as a vision or insulin-treated diabetes exemption) must carry the exemption document with the Medical Examiner's Certificate.
The driver self-certifies the type of operation (interstate non-excepted, interstate excepted, or intrastate) and must provide the medical certificate to the state licensing agency.
The medical examiner must be recertified and listed on the National Registry; an examination by a non-listed provider is not valid for CDL purposes.
Vision standards require at least 20/40 corrected in each eye and a field of vision of at least 70 degrees in the horizontal meridian.
Hearing standards require the driver to perceive a forced whisper at not less than 5 feet, with or without a hearing aid, or to meet an equivalent audiometric standard.
A driver who fails to maintain a valid medical certificate is placed out of service and may not operate a CMV until a valid certificate is provided to the state.
Drug and Alcohol Clearinghouse Requirements
The FMCSA Drug and Alcohol Clearinghouse is a database that records drug and alcohol program violations for CDL drivers; employers, drivers, and medical review officers use it.
A pre-employment query of the Clearinghouse is required before an employer may hire a CDL driver, and the driver must consent to the query.
An annual query of the Clearinghouse is required for all employed CDL drivers, conducted as a limited query with the driver's consent on file.
A driver with a prohibited status (refusal to test, positive test, or actual knowledge) may not perform safety-sensitive functions until completing the return-to-duty process with a substance abuse professional.
A driver must be registered in the Clearinghouse to respond to employer queries and to view their own record; registration is separate from the CDL itself.
Employers must report violations, including positive test results, refusals, and actual knowledge, to the Clearinghouse within three business days.
A driver may request a correction of Clearinghouse information and may designate a substance abuse professional or other representative to access the record.
The Clearinghouse final rule requires reporting of violations for all CDL drivers, including those operating in excepted interstate and intrastate commerce.
Hazardous Materials Endorsement (H) Knowledge Requirements
An H endorsement is required to drive a CMV transporting placarded quantities of hazardous materials, and it is added to a Class A, B, or C CDL; it cannot stand alone.
The hazmat knowledge test is a separate written test from the general CDL tests; passing it requires a score of at least 80 percent, and it must be retaken at each renewal.
The hazardous materials table (49 CFR 172.101) assigns each material its hazard class, UN/NA identification number, packing group, label codes, and required placards.
Placards are required for 1,001 pounds or more aggregate gross weight of a single hazard class, for any quantity of a Table 2 material in the placarding table, and for bulk packages.
Class 1 explosives are divided into six compatibility groups for mixed loading; Division 1.1 through 1.3 generally may not be loaded with detonators or with Division 1.5.
Shipping papers must accompany the shipment, be within the driver's reach while seated, and be kept in a pouch on the driver's door or in clear view when the driver leaves the cab.
A hazardous materials endorsement holder must report to the employer any suspension, revocation, or cancellation of the endorsement, and must not operate a CMV hauling hazmat without a valid endorsement.
The security threat assessment (STA) required for the H endorsement is conducted by TSA; a disqualifying criminal history or a finding of not being a lawful permanent resident results in denial.
Rail crossings, tunnels, and populated areas may restrict hazmat routes; the driver must follow designated routes and stop requirements and may not smoke or carry a firearm while operating a placarded vehicle.
Entry-Level Driver Training (ELDT) for the Hazardous Materials Endorsement
ELDT for the H endorsement is required before the applicant may take the state hazmat knowledge test; training must be completed by a registered training provider.
The H endorsement curriculum covers basic introductory hazmat content, operational requirements, and reporting and recordkeeping, plus a security awareness module.
The training provider must be listed on the FMCSA Training Provider Registry, and the provider submits the driver's completion record electronically to the registry.
The H endorsement theory curriculum requires a minimum of 20 total clock hours of instruction across the three required units.
ELDT completion for the H endorsement does not expire for purposes of taking the knowledge test, but the endorsement itself must be renewed and the knowledge test retaken at renewal.
A driver who already holds the H endorsement and is only renewing or transferring it is not required to repeat ELDT, but must still pass the knowledge test and the TSA security threat assessment.
ELDT is required for the H, N, P, and S endorsements and for the Class A and Class B CDL, but not for the Class C CDL or for the M endorsement.
The training provider must assess the driver's knowledge before certifying completion; self-certification by the driver alone is not sufficient.
Medical Examiner Certification Requirements for CDL Holders
A CDL holder must be examined by a medical examiner listed on the FMCSA National Registry of Certified Medical Examiners and must carry a valid Medical Examiner's Certificate.
The medical examiner completes the MCSA-5875 (Medical Examination Report) and issues the MCSA-5876 (Medical Examiner's Certificate) with an expiration date not to exceed 24 months.
A driver with a medical variance (such as a vision or insulin-treated diabetes exemption) must carry the exemption document with the Medical Examiner's Certificate.
The driver self-certifies the type of operation (interstate non-excepted, interstate excepted, or intrastate) and must provide the medical certificate to the state licensing agency.
The medical examiner must be recertified and listed on the National Registry; an examination by a non-listed provider is not valid for CDL purposes.
Vision standards require at least 20/40 corrected in each eye and a field of vision of at least 70 degrees in the horizontal meridian.
Hearing standards require the driver to perceive a forced whisper at not less than 5 feet, with or without a hearing aid, or to meet an equivalent audiometric standard.
A driver who fails to maintain a valid medical certificate is placed out of service and may not operate a CMV until a valid certificate is provided to the state.
Drug and Alcohol Clearinghouse Requirements
The FMCSA Drug and Alcohol Clearinghouse is a database that records drug and alcohol program violations for CDL drivers; employers, drivers, and medical review officers use it.
A pre-employment query of the Clearinghouse is required before an employer may hire a CDL driver, and the driver must consent to the query.
An annual query of the Clearinghouse is required for all employed CDL drivers, conducted as a limited query with the driver's consent on file.
A driver with a prohibited status (refusal to test, positive test, or actual knowledge) may not perform safety-sensitive functions until completing the return-to-duty process with a substance abuse professional.
A driver must be registered in the Clearinghouse to respond to employer queries and to view their own record; registration is separate from the CDL itself.
Employers must report violations, including positive test results, refusals, and actual knowledge, to the Clearinghouse within three business days.
A driver may request a correction of Clearinghouse information and may designate a substance abuse professional or other representative to access the record.
The Clearinghouse final rule requires reporting of violations for all CDL drivers, including those operating in excepted interstate and intrastate commerce.
Hazardous Materials Endorsement (H) Knowledge Requirements
An H endorsement is required to drive a CMV transporting placarded quantities of hazardous materials, and it is added to a Class A, B, or C CDL; it cannot stand alone.
The hazmat knowledge test is a separate written test from the general CDL tests; passing it requires a score of at least 80 percent, and it must be retaken at each renewal.
The hazardous materials table (49 CFR 172.101) assigns each material its hazard class, UN/NA identification number, packing group, label codes, and required placards.
Placards are required for 1,001 pounds or more aggregate gross weight of a single hazard class, for any quantity of a Table 2 material in the placarding table, and for bulk packages.
Class 1 explosives are divided into six compatibility groups for mixed loading; Division 1.1 through 1.3 generally may not be loaded with detonators or with Division 1.5.
Shipping papers must accompany the shipment, be within the driver's reach while seated, and be kept in a pouch on the driver's door or in clear view when the driver leaves the cab.
A hazardous materials endorsement holder must report to the employer any suspension, revocation, or cancellation of the endorsement, and must not operate a CMV hauling hazmat without a valid endorsement.
The security threat assessment (STA) required for the H endorsement is conducted by TSA; a disqualifying criminal history or a finding of not being a lawful permanent resident results in denial.
Rail crossings, tunnels, and populated areas may restrict hazmat routes; the driver must follow designated routes and stop requirements and may not smoke or carry a firearm while operating a placarded vehicle.
Entry-Level Driver Training (ELDT) for the Hazardous Materials Endorsement
ELDT for the H endorsement is required before the applicant may take the state hazmat knowledge test; training must be completed by a registered training provider.
The H endorsement curriculum covers basic introductory hazmat content, operational requirements, and reporting and recordkeeping, plus a security awareness module.
The training provider must be listed on the FMCSA Training Provider Registry, and the provider submits the driver's completion record electronically to the registry.
The H endorsement theory curriculum requires a minimum of 20 total clock hours of instruction across the three required units.
ELDT completion for the H endorsement does not expire for purposes of taking the knowledge test, but the endorsement itself must be renewed and the knowledge test retaken at renewal.
A driver who already holds the H endorsement and is only renewing or transferring it is not required to repeat ELDT, but must still pass the knowledge test and the TSA security threat assessment.
ELDT is required for the H, N, P, and S endorsements and for the Class A and Class B CDL, but not for the Class C CDL or for the M endorsement.
The training provider must assess the driver's knowledge before certifying completion; self-certification by the driver alone is not sufficient.
Medical Examiner Certification Requirements for CDL Holders
A CDL holder must be examined by a medical examiner listed on the FMCSA National Registry of Certified Medical Examiners and must carry a valid Medical Examiner's Certificate.
The medical examiner completes the MCSA-5875 (Medical Examination Report) and issues the MCSA-5876 (Medical Examiner's Certificate) with an expiration date not to exceed 24 months.
A driver with a medical variance (such as a vision or insulin-treated diabetes exemption) must carry the exemption document with the Medical Examiner's Certificate.
The driver self-certifies the type of operation (interstate non-excepted, interstate excepted, or intrastate) and must provide the medical certificate to the state licensing agency.
The medical examiner must be recertified and listed on the National Registry; an examination by a non-listed provider is not valid for CDL purposes.
Vision standards require at least 20/40 corrected in each eye and a field of vision of at least 70 degrees in the horizontal meridian.
Hearing standards require the driver to perceive a forced whisper at not less than 5 feet, with or without a hearing aid, or to meet an equivalent audiometric standard.
A driver who fails to maintain a valid medical certificate is placed out of service and may not operate a CMV until a valid certificate is provided to the state.
Drug and Alcohol Clearinghouse Requirements
The FMCSA Drug and Alcohol Clearinghouse is a database that records drug and alcohol program violations for CDL drivers; employers, drivers, and medical review officers use it.
A pre-employment query of the Clearinghouse is required before an employer may hire a CDL driver, and the driver must consent to the query.
An annual query of the Clearinghouse is required for all employed CDL drivers, conducted as a limited query with the driver's consent on file.
A driver with a prohibited status (refusal to test, positive test, or actual knowledge) may not perform safety-sensitive functions until completing the return-to-duty process with a substance abuse professional.
A driver must be registered in the Clearinghouse to respond to employer queries and to view their own record; registration is separate from the CDL itself.
Employers must report violations, including positive test results, refusals, and actual knowledge, to the Clearinghouse within three business days.
A driver may request a correction of Clearinghouse information and may designate a substance abuse professional or other representative to access the record.
The Clearinghouse final rule requires reporting of violations for all CDL drivers, including those operating in excepted interstate and intrastate commerce.
Hazardous Materials Endorsement (H) Knowledge Requirements
An H endorsement is required to drive a CMV transporting placarded quantities of hazardous materials, and it is added to a Class A, B, or C CDL; it cannot stand alone.
The hazmat knowledge test is a separate written test from the general CDL tests; passing it requires a score of at least 80 percent, and it must be retaken at each renewal.
The hazardous materials table (49 CFR 172.101) assigns each material its hazard class, UN/NA identification number, packing group, label codes, and required placards.
Placards are required for 1,001 pounds or more aggregate gross weight of a single hazard class, for any quantity of a Table 2 material in the placarding table, and for bulk packages.
Class 1 explosives are divided into six compatibility groups for mixed loading; Division 1.1 through 1.3 generally may not be loaded with detonators or with Division 1.5.
Shipping papers must accompany the shipment, be within the driver's reach while seated, and be kept in a pouch on the driver's door or in clear view when the driver leaves the cab.
A hazardous materials endorsement holder must report to the employer any suspension, revocation, or cancellation of the endorsement, and must not operate a CMV hauling hazmat without a valid endorsement.
The security threat assessment (STA) required for the H endorsement is conducted by TSA; a disqualifying criminal history or a finding of not being a lawful permanent resident results in denial.
Rail crossings, tunnels, and populated areas may restrict hazmat routes; the driver must follow designated routes and stop requirements and may not smoke or carry a firearm while operating a placarded vehicle.
Entry-Level Driver Training (ELDT) for the Hazardous Materials Endorsement
ELDT for the H endorsement is required before the applicant may take the state hazmat knowledge test; training must be completed by a registered training provider.
The H endorsement curriculum covers basic introductory hazmat content, operational requirements, and reporting and recordkeeping, plus a security awareness module.
The training provider must be listed on the FMCSA Training Provider Registry, and the provider submits the driver's completion record electronically to the registry.
The H endorsement theory curriculum requires a minimum of 20 total clock hours of instruction across the three required units.
ELDT completion for the H endorsement does not expire for purposes of taking the knowledge test, but the endorsement itself must be renewed and the knowledge test retaken at renewal.
A driver who already holds the H endorsement and is only renewing or transferring it is not required to repeat ELDT, but must still pass the knowledge test and the TSA security threat assessment.
ELDT is required for the H, N, P, and S endorsements and for the Class A and Class B CDL, but not for the Class C CDL or for the M endorsement.
The training provider must assess the driver's knowledge before certifying completion; self-certification by the driver alone is not sufficient.
Medical Examiner Certification Requirements for CDL Holders
A CDL holder must be examined by a medical examiner listed on the FMCSA National Registry of Certified Medical Examiners and must carry a valid Medical Examiner's Certificate.
The medical examiner completes the MCSA-5875 (Medical Examination Report) and issues the MCSA-5876 (Medical Examiner's Certificate) with an expiration date not to exceed 24 months.
A driver with a medical variance (such as a vision or insulin-treated diabetes exemption) must carry the exemption document with the Medical Examiner's Certificate.
The driver self-certifies the type of operation (interstate non-excepted, interstate excepted, or intrastate) and must provide the medical certificate to the state licensing agency.
The medical examiner must be recertified and listed on the National Registry; an examination by a non-listed provider is not valid for CDL purposes.
Vision standards require at least 20/40 corrected in each eye and a field of vision of at least 70 degrees in the horizontal meridian.
Hearing standards require the driver to perceive a forced whisper at not less than 5 feet, with or without a hearing aid, or to meet an equivalent audiometric standard.
A driver who fails to maintain a valid medical certificate is placed out of service and may not operate a CMV until a valid certificate is provided to the state.
Drug and Alcohol Clearinghouse Requirements
The FMCSA Drug and Alcohol Clearinghouse is a database that records drug and alcohol program violations for CDL drivers; employers, drivers, and medical review officers use it.
A pre-employment query of the Clearinghouse is required before an employer may hire a CDL driver, and the driver must consent to the query.
An annual query of the Clearinghouse is required for all employed CDL drivers, conducted as a limited query with the driver's consent on file.
A driver with a prohibited status (refusal to test, positive test, or actual knowledge) may not perform safety-sensitive functions until completing the return-to-duty process with a substance abuse professional.
A driver must be registered in the Clearinghouse to respond to employer queries and to view their own record; registration is separate from the CDL itself.
Employers must report violations, including positive test results, refusals, and actual knowledge, to the Clearinghouse within three business days.
A driver may request a correction of Clearinghouse information and may designate a substance abuse professional or other representative to access the record.
The Clearinghouse final rule requires reporting of violations for all CDL drivers, including those operating in excepted interstate and intrastate commerce.
Hazardous Materials Endorsement (H) Knowledge Requirements
An H endorsement is required to drive a CMV transporting placarded quantities of hazardous materials, and it is added to a Class A, B, or C CDL; it cannot stand alone.
The hazmat knowledge test is a separate written test from the general CDL tests; passing it requires a score of at least 80 percent, and it must be retaken at each renewal.
The hazardous materials table (49 CFR 172.101) assigns each material its hazard class, UN/NA identification number, packing group, label codes, and required placards.
Placards are required for 1,001 pounds or more aggregate gross weight of a single hazard class, for any quantity of a Table 2 material in the placarding table, and for bulk packages.
Class 1 explosives are divided into six compatibility groups for mixed loading; Division 1.1 through 1.3 generally may not be loaded with detonators or with Division 1.5.
Shipping papers must accompany the shipment, be within the driver's reach while seated, and be kept in a pouch on the driver's door or in clear view when the driver leaves the cab.
A hazardous materials endorsement holder must report to the employer any suspension, revocation, or cancellation of the endorsement, and must not operate a CMV hauling hazmat without a valid endorsement.
The security threat assessment (STA) required for the H endorsement is conducted by TSA; a disqualifying criminal history or a finding of not being a lawful permanent resident results in denial.
Rail crossings, tunnels, and populated areas may restrict hazmat routes; the driver must follow designated routes and stop requirements and may not smoke or carry a firearm while operating a placarded vehicle.
Entry-Level Driver Training (ELDT) for the Hazardous Materials Endorsement
ELDT for the H endorsement is required before the applicant may take the state hazmat knowledge test; training must be completed by a registered training provider.
The H endorsement curriculum covers basic introductory hazmat content, operational requirements, and reporting and recordkeeping, plus a security awareness module.
The training provider must be listed on the FMCSA Training Provider Registry, and the provider submits the driver's completion record electronically to the registry.
The H endorsement theory curriculum requires a minimum of 20 total clock hours of instruction across the three required units.
ELDT completion for the H endorsement does not expire for purposes of taking the knowledge test, but the endorsement itself must be renewed and the knowledge test retaken at renewal.
A driver who already holds the H endorsement and is only renewing or transferring it is not required to repeat ELDT, but must still pass the knowledge test and the TSA security threat assessment.
ELDT is required for the H, N, P, and S endorsements and for the Class A and Class B CDL, but not for the Class C CDL or for the M endorsement.
The training provider must assess the driver's knowledge before certifying completion; self-certification by the driver alone is not sufficient.
Medical Examiner Certification Requirements for CDL Holders
A CDL holder must be examined by a medical examiner listed on the FMCSA National Registry of Certified Medical Examiners and must carry a valid Medical Examiner's Certificate.
The medical examiner completes the MCSA-5875 (Medical Examination Report) and issues the MCSA-5876 (Medical Examiner's Certificate) with an expiration date not to exceed 24 months.
A driver with a medical variance (such as a vision or insulin-treated diabetes exemption) must carry the exemption document with the Medical Examiner's Certificate.
The driver self-certifies the type of operation (interstate non-excepted, interstate excepted, or intrastate) and must provide the medical certificate to the state licensing agency.
The medical examiner must be recertified and listed on the National Registry; an examination by a non-listed provider is not valid for CDL purposes.
Vision standards require at least 20/40 corrected in each eye and a field of vision of at least 70 degrees in the horizontal meridian.
Hearing standards require the driver to perceive a forced whisper at not less than 5 feet, with or without a hearing aid, or to meet an equivalent audiometric standard.
A driver who fails to maintain a valid medical certificate is placed out of service and may not operate a CMV until a valid certificate is provided to the state.
Drug and Alcohol Clearinghouse Requirements
The FMCSA Drug and Alcohol Clearinghouse is a database that records drug and alcohol program violations for CDL drivers; employers, drivers, and medical review officers use it.
A pre-employment query of the Clearinghouse is required before an employer may hire a CDL driver, and the driver must consent to the query.
An annual query of the Clearinghouse is required for all employed CDL drivers, conducted as a limited query with the driver's consent on file.
A driver with a prohibited status (refusal to test, positive test, or actual knowledge) may not perform safety-sensitive functions until completing the return-to-duty process with a substance abuse professional.
A driver must be registered in the Clearinghouse to respond to employer queries and to view their own record; registration is separate from the CDL itself.
Employers must report violations, including positive test results, refusals, and actual knowledge, to the Clearinghouse within three business days.
A driver may request a correction of Clearinghouse information and may designate a substance abuse professional or other representative to access the record.
The Clearinghouse final rule requires reporting of violations for all CDL drivers, including those operating in excepted interstate and intrastate commerce.
Hazardous Materials Endorsement (H) Knowledge Requirements
An H endorsement is required to drive a CMV transporting placarded quantities of hazardous materials, and it is added to a Class A, B, or C CDL; it cannot stand alone.
The hazmat knowledge test is a separate written test from the general CDL tests; passing it requires a score of at least 80 percent, and it must be retaken at each renewal.
The hazardous materials table (49 CFR 172.101) assigns each material its hazard class, UN/NA identification number, packing group, label codes, and required placards.
Placards are required for 1,001 pounds or more aggregate gross weight of a single hazard class, for any quantity of a Table 2 material in the placarding table, and for bulk packages.
Class 1 explosives are divided into six compatibility groups for mixed loading; Division 1.1 through 1.3 generally may not be loaded with detonators or with Division 1.5.
Shipping papers must accompany the shipment, be within the driver's reach while seated, and be kept in a pouch on the driver's door or in clear view when the driver leaves the cab.
A hazardous materials endorsement holder must report to the employer any suspension, revocation, or cancellation of the endorsement, and must not operate a CMV hauling hazmat without a valid endorsement.
The security threat assessment (STA) required for the H endorsement is conducted by TSA; a disqualifying criminal history or a finding of not being a lawful permanent resident results in denial.
Rail crossings, tunnels, and populated areas may restrict hazmat routes; the driver must follow designated routes and stop requirements and may not smoke or carry a firearm while operating a placarded vehicle.
Entry-Level Driver Training (ELDT) for the Hazardous Materials Endorsement
ELDT for the H endorsement is required before the applicant may take the state hazmat knowledge test; training must be completed by a registered training provider.
The H endorsement curriculum covers basic introductory hazmat content, operational requirements, and reporting and recordkeeping, plus a security awareness module.
The training provider must be listed on the FMCSA Training Provider Registry, and the provider submits the driver's completion record electronically to the registry.
The H endorsement theory curriculum requires a minimum of 20 total clock hours of instruction across the three required units.
ELDT completion for the H endorsement does not expire for purposes of taking the knowledge test, but the endorsement itself must be renewed and the knowledge test retaken at renewal.
A driver who already holds the H endorsement and is only renewing or transferring it is not required to repeat ELDT, but must still pass the knowledge test and the TSA security threat assessment.
ELDT is required for the H, N, P, and S endorsements and for the Class A and Class B CDL, but not for the Class C CDL or for the M endorsement.
The training provider must assess the driver's knowledge before certifying completion; self-certification by the driver alone is not sufficient.
Medical Examiner Certification Requirements for CDL Holders
A CDL holder must be examined by a medical examiner listed on the FMCSA National Registry of Certified Medical Examiners and must carry a valid Medical Examiner's Certificate.
The medical examiner completes the MCSA-5875 (Medical Examination Report) and issues the MCSA-5876 (Medical Examiner's Certificate) with an expiration date not to exceed 24 months.
A driver with a medical variance (such as a vision or insulin-treated diabetes exemption) must carry the exemption document with the Medical Examiner's Certificate.
The driver self-certifies the type of operation (interstate non-excepted, interstate excepted, or intrastate) and must provide the medical certificate to the state licensing agency.
The medical examiner must be recertified and listed on the National Registry; an examination by a non-listed provider is not valid for CDL purposes.
Vision standards require at least 20/40 corrected in each eye and a field of vision of at least 70 degrees in the horizontal meridian.
Hearing standards require the driver to perceive a forced whisper at not less than 5 feet, with or without a hearing aid, or to meet an equivalent audiometric standard.
A driver who fails to maintain a valid medical certificate is placed out of service and may not operate a CMV until a valid certificate is provided to the state.
Drug and Alcohol Clearinghouse Requirements
The FMCSA Drug and Alcohol Clearinghouse is a database that records drug and alcohol program violations for CDL drivers; employers, drivers, and medical review officers use it.
A pre-employment query of the Clearinghouse is required before an employer may hire a CDL driver, and the driver must consent to the query.
An annual query of the Clearinghouse is required for all employed CDL drivers, conducted as a limited query with the driver's consent on file.
A driver with a prohibited status (refusal to test, positive test, or actual knowledge) may not perform safety-sensitive functions until completing the return-to-duty process with a substance abuse professional.
A driver must be registered in the Clearinghouse to respond to employer queries and to view their own record; registration is separate from the CDL itself.
Employers must report violations, including positive test results, refusals, and actual knowledge, to the Clearinghouse within three business days.
A driver may request a correction of Clearinghouse information and may designate a substance abuse professional or other representative to access the record.
The Clearinghouse final rule requires reporting of violations for all CDL drivers, including those operating in excepted interstate and intrastate commerce.
Hazardous Materials Endorsement (H) Knowledge Requirements
An H endorsement is required to drive a CMV transporting placarded quantities of hazardous materials, and it is added to a Class A, B, or C CDL; it cannot stand alone.
The hazmat knowledge test is a separate written test from the general CDL tests; passing it requires a score of at least 80 percent, and it must be retaken at each renewal.
The hazardous materials table (49 CFR 172.101) assigns each material its hazard class, UN/NA identification number, packing group, label codes, and required placards.
Placards are required for 1,001 pounds or more aggregate gross weight of a single hazard class, for any quantity of a Table 2 material in the placarding table, and for bulk packages.
Class 1 explosives are divided into six compatibility groups for mixed loading; Division 1.1 through 1.3 generally may not be loaded with detonators or with Division 1.5.
Shipping papers must accompany the shipment, be within the driver's reach while seated, and be kept in a pouch on the driver's door or in clear view when the driver leaves the cab.
A hazardous materials endorsement holder must report to the employer any suspension, revocation, or cancellation of the endorsement, and must not operate a CMV hauling hazmat without a valid endorsement.
The security threat assessment (STA) required for the H endorsement is conducted by TSA; a disqualifying criminal history or a finding of not being a lawful permanent resident results in denial.
Rail crossings, tunnels, and populated areas may restrict hazmat routes; the driver must follow designated routes and stop requirements and may not smoke or carry a firearm while operating a placarded vehicle.
Entry-Level Driver Training (ELDT) for the Hazardous Materials Endorsement
ELDT for the H endorsement is required before the applicant may take the state hazmat knowledge test; training must be completed by a registered training provider.
The H endorsement curriculum covers basic introductory hazmat content, operational requirements, and reporting and recordkeeping, plus a security awareness module.
The training provider must be listed on the FMCSA Training Provider Registry, and the provider submits the driver's completion record electronically to the registry.
The H endorsement theory curriculum requires a minimum of 20 total clock hours of instruction across the three required units.
ELDT completion for the H endorsement does not expire for purposes of taking the knowledge test, but the endorsement itself must be renewed and the knowledge test retaken at renewal.
A driver who already holds the H endorsement and is only renewing or transferring it is not required to repeat ELDT, but must still pass the knowledge test and the TSA security threat assessment.
ELDT is required for the H, N, P, and S endorsements and for the Class A and Class B CDL, but not for the Class C CDL or for the M endorsement.
The training provider must assess the driver's knowledge before certifying completion; self-certification by the driver alone is not sufficient.
Medical Examiner Certification Requirements for CDL Holders
A CDL holder must be examined by a medical examiner listed on the FMCSA National Registry of Certified Medical Examiners and must carry a valid Medical Examiner's Certificate.
The medical examiner completes the MCSA-5875 (Medical Examination Report) and issues the MCSA-5876 (Medical Examiner's Certificate) with an expiration date not to exceed 24 months.
A driver with a medical variance (such as a vision or insulin-treated diabetes exemption) must carry the exemption document with the Medical Examiner's Certificate.
The driver self-certifies the type of operation (interstate non-excepted, interstate excepted, or intrastate) and must provide the medical certificate to the state licensing agency.
The medical examiner must be recertified and listed on the National Registry; an examination by a non-listed provider is not valid for CDL purposes.
Vision standards require at least 20/40 corrected in each eye and a field of vision of at least 70 degrees in the horizontal meridian.
Hearing standards require the driver to perceive a forced whisper at not less than 5 feet, with or without a hearing aid, or to meet an equivalent audiometric standard.
A driver who fails to maintain a valid medical certificate is placed out of service and may not operate a CMV until a valid certificate is provided to the state.
Drug and Alcohol Clearinghouse Requirements
The FMCSA Drug and Alcohol Clearinghouse is a database that records drug and alcohol program violations for CDL drivers; employers, drivers, and medical review officers use it.
A pre-employment query of the Clearinghouse is required before an employer may hire a CDL driver, and the driver must consent to the query.
An annual query of the Clearinghouse is required for all employed CDL drivers, conducted as a limited query with the driver's consent on file.
A driver with a prohibited status (refusal to test, positive test, or actual knowledge) may not perform safety-sensitive functions until completing the return-to-duty process with a substance abuse professional.
A driver must be registered in the Clearinghouse to respond to employer queries and to view their own record; registration is separate from the CDL itself.
Employers must report violations, including positive test results, refusals, and actual knowledge, to the Clearinghouse within three business days.
A driver may request a correction of Clearinghouse information and may designate a substance abuse professional or other representative to access the record.
The Clearinghouse final rule requires reporting of violations for all CDL drivers, including those operating in excepted interstate and intrastate commerce.
Hazardous Materials Endorsement (H) Knowledge Requirements
An H endorsement is required to drive a CMV transporting placarded quantities of hazardous materials, and it is added to a Class A, B, or C CDL; it cannot stand alone.
The hazmat knowledge test is a separate written test from the general CDL tests; passing it requires a score of at least 80 percent, and it must be retaken at each renewal.
The hazardous materials table (49 CFR 172.101) assigns each material its hazard class, UN/NA identification number, packing group, label codes, and required placards.
Placards are required for 1,001 pounds or more aggregate gross weight of a single hazard class, for any quantity of a Table 2 material in the placarding table, and for bulk packages.
Class 1 explosives are divided into six compatibility groups for mixed loading; Division 1.1 through 1.3 generally may not be loaded with detonators or with Division 1.5.
Shipping papers must accompany the shipment, be within the driver's reach while seated, and be kept in a pouch on the driver's door or in clear view when the driver leaves the cab.
A hazardous materials endorsement holder must report to the employer any suspension, revocation, or cancellation of the endorsement, and must not operate a CMV hauling hazmat without a valid endorsement.
The security threat assessment (STA) required for the H endorsement is conducted by TSA; a disqualifying criminal history or a finding of not being a lawful permanent resident results in denial.
Rail crossings, tunnels, and populated areas may restrict hazmat routes; the driver must follow designated routes and stop requirements and may not smoke or carry a firearm while operating a placarded vehicle.
Entry-Level Driver Training (ELDT) for the Hazardous Materials Endorsement
ELDT for the H endorsement is required before the applicant may take the state hazmat knowledge test; training must be completed by a registered training provider.
The H endorsement curriculum covers basic introductory hazmat content, operational requirements, and reporting and recordkeeping, plus a security awareness module.
The training provider must be listed on the FMCSA Training Provider Registry, and the provider submits the driver's completion record electronically to the registry.
The H endorsement theory curriculum requires a minimum of 20 total clock hours of instruction across the three required units.
ELDT completion for the H endorsement does not expire for purposes of taking the knowledge test, but the endorsement itself must be renewed and the knowledge test retaken at renewal.
A driver who already holds the H endorsement and is only renewing or transferring it is not required to repeat ELDT, but must still pass the knowledge test and the TSA security threat assessment.
ELDT is required for the H, N, P, and S endorsements and for the Class A and Class B CDL, but not for the Class C CDL or for the M endorsement.
The training provider must assess the driver's knowledge before certifying completion; self-certification by the driver alone is not sufficient.
Medical Examiner Certification Requirements for CDL Holders
A CDL holder must be examined by a medical examiner listed on the FMCSA National Registry of Certified Medical Examiners and must carry a valid Medical Examiner's Certificate.
The medical examiner completes the MCSA-5875 (Medical Examination Report) and issues the MCSA-5876 (Medical Examiner's Certificate) with an expiration date not to exceed 24 months.
A driver with a medical variance (such as a vision or insulin-treated diabetes exemption) must carry the exemption document with the Medical Examiner's Certificate.
The driver self-certifies the type of operation (interstate non-excepted, interstate excepted, or intrastate) and must provide the medical certificate to the state licensing agency.
The medical examiner must be recertified and listed on the National Registry; an examination by a non-listed provider is not valid for CDL purposes.
Vision standards require at least 20/40 corrected in each eye and a field of vision of at least 70 degrees in the horizontal meridian.
Hearing standards require the driver to perceive a forced whisper at not less than 5 feet, with or without a hearing aid, or to meet an equivalent audiometric standard.
A driver who fails to maintain a valid medical certificate is placed out of service and may not operate a CMV until a valid certificate is provided to the state.
Drug and Alcohol Clearinghouse Requirements
The FMCSA Drug and Alcohol Clearinghouse is a database that records drug and alcohol program violations for CDL drivers; employers, drivers, and medical review officers use it.
A pre-employment query of the Clearinghouse is required before an employer may hire a CDL driver, and the driver must consent to the query.
An annual query of the Clearinghouse is required for all employed CDL drivers, conducted as a limited query with the driver's consent on file.
A driver with a prohibited status (refusal to test, positive test, or actual knowledge) may not perform safety-sensitive functions until completing the return-to-duty process with a substance abuse professional.
A driver must be registered in the Clearinghouse to respond to employer queries and to view their own record; registration is separate from the CDL itself.
Employers must report violations, including positive test results, refusals, and actual knowledge, to the Clearinghouse within three business days.
A driver may request a correction of Clearinghouse information and may designate a substance abuse professional or other representative to access the record.
The Clearinghouse final rule requires reporting of violations for all CDL drivers, including those operating in excepted interstate and intrastate commerce.
Hazardous Materials Endorsement (H) Knowledge Requirements
An H endorsement is required to drive a CMV transporting placarded quantities of hazardous materials, and it is added to a Class A, B, or C CDL; it cannot stand alone.
The hazmat knowledge test is a separate written test from the general CDL tests; passing it requires a score of at least 80 percent, and it must be retaken at each renewal.
The hazardous materials table (49 CFR 172.101) assigns each material its hazard class, UN/NA identification number, packing group, label codes, and required placards.
Placards are required for 1,001 pounds or more aggregate gross weight of a single hazard class, for any quantity of a Table 2 material in the placarding table, and for bulk packages.
Class 1 explosives are divided into six compatibility groups for mixed loading; Division 1.1 through 1.3 generally may not be loaded with detonators or with Division 1.5.
Shipping papers must accompany the shipment, be within the driver's reach while seated, and be kept in a pouch on the driver's door or in clear view when the driver leaves the cab.
A hazardous materials endorsement holder must report to the employer any suspension, revocation, or cancellation of the endorsement, and must not operate a CMV hauling hazmat without a valid endorsement.
The security threat assessment (STA) required for the H endorsement is conducted by TSA; a disqualifying criminal history or a finding of not being a lawful permanent resident results in denial.
Rail crossings, tunnels, and populated areas may restrict hazmat routes; the driver must follow designated routes and stop requirements and may not smoke or carry a firearm while operating a placarded vehicle.
Entry-Level Driver Training (ELDT) for the Hazardous Materials Endorsement
ELDT for the H endorsement is required before the applicant may take the state hazmat knowledge test; training must be completed by a registered training provider.
The H endorsement curriculum covers basic introductory hazmat content, operational requirements, and reporting and recordkeeping, plus a security awareness module.
The training provider must be listed on the FMCSA Training Provider Registry, and the provider submits the driver's completion record electronically to the registry.
The H endorsement theory curriculum requires a minimum of 20 total clock hours of instruction across the three required units.
ELDT completion for the H endorsement does not expire for purposes of taking the knowledge test, but the endorsement itself must be renewed and the knowledge test retaken at renewal.
A driver who already holds the H endorsement and is only renewing or transferring it is not required to repeat ELDT, but must still pass the knowledge test and the TSA security threat assessment.
ELDT is required for the H, N, P, and S endorsements and for the Class A and Class B CDL, but not for the Class C CDL or for the M endorsement.
The training provider must assess the driver's knowledge before certifying completion; self-certification by the driver alone is not sufficient.
Medical Examiner Certification Requirements for CDL Holders
A CDL holder must be examined by a medical examiner listed on the FMCSA National Registry of Certified Medical Examiners and must carry a valid Medical Examiner's Certificate.
The medical examiner completes the MCSA-5875 (Medical Examination Report) and issues the MCSA-5876 (Medical Examiner's Certificate) with an expiration date not to exceed 24 months.
A driver with a medical variance (such as a vision or insulin-treated diabetes exemption) must carry the exemption document with the Medical Examiner's Certificate.
The driver self-certifies the type of operation (interstate non-excepted, interstate excepted, or intrastate) and must provide the medical certificate to the state licensing agency.
The medical examiner must be recertified and listed on the National Registry; an examination by a non-listed provider is not valid for CDL purposes.
Vision standards require at least 20/40 corrected in each eye and a field of vision of at least 70 degrees in the horizontal meridian.
Hearing standards require the driver to perceive a forced whisper at not less than 5 feet, with or without a hearing aid, or to meet an equivalent audiometric standard.
A driver who fails to maintain a valid medical certificate is placed out of service and may not operate a CMV until a valid certificate is provided to the state.
Drug and Alcohol Clearinghouse Requirements
The FMCSA Drug and Alcohol Clearinghouse is a database that records drug and alcohol program violations for CDL drivers; employers, drivers, and medical review officers use it.
A pre-employment query of the Clearinghouse is required before an employer may hire a CDL driver, and the driver must consent to the query.
An annual query of the Clearinghouse is required for all employed CDL drivers, conducted as a limited query with the driver's consent on file.
A driver with a prohibited status (refusal to test, positive test, or actual knowledge) may not perform safety-sensitive functions until completing the return-to-duty process with a substance abuse professional.
A driver must be registered in the Clearinghouse to respond to employer queries and to view their own record; registration is separate from the CDL itself.
Employers must report violations, including positive test results, refusals, and actual knowledge, to the Clearinghouse within three business days.
A driver may request a correction of Clearinghouse information and may designate a substance abuse professional or other representative to access the record.
The Clearinghouse final rule requires reporting of violations for all CDL drivers, including those operating in excepted interstate and intrastate commerce.
Hazardous Materials Endorsement (H) Knowledge Requirements
An H endorsement is required to drive a CMV transporting placarded quantities of hazardous materials, and it is added to a Class A, B, or C CDL; it cannot stand alone.
The hazmat knowledge test is a separate written test from the general CDL tests; passing it requires a score of at least 80 percent, and it must be retaken at each renewal.
The hazardous materials table (49 CFR 172.101) assigns each material its hazard class, UN/NA identification number, packing group, label codes, and required placards.
Placards are required for 1,001 pounds or more aggregate gross weight of a single hazard class, for any quantity of a Table 2 material in the placarding table, and for bulk packages.
Class 1 explosives are divided into six compatibility groups for mixed loading; Division 1.1 through 1.3 generally may not be loaded with detonators or with Division 1.5.
Shipping papers must accompany the shipment, be within the driver's reach while seated, and be kept in a pouch on the driver's door or in clear view when the driver leaves the cab.
A hazardous materials endorsement holder must report to the employer any suspension, revocation, or cancellation of the endorsement, and must not operate a CMV hauling hazmat without a valid endorsement.
The security threat assessment (STA) required for the H endorsement is conducted by TSA; a disqualifying criminal history or a finding of not being a lawful permanent resident results in denial.
Rail crossings, tunnels, and populated areas may restrict hazmat routes; the driver must follow designated routes and stop requirements and may not smoke or carry a firearm while operating a placarded vehicle.
Entry-Level Driver Training (ELDT) for the Hazardous Materials Endorsement
ELDT for the H endorsement is required before the applicant may take the state hazmat knowledge test; training must be completed by a registered training provider.
The H endorsement curriculum covers basic introductory hazmat content, operational requirements, and reporting and recordkeeping, plus a security awareness module.
The training provider must be listed on the FMCSA Training Provider Registry, and the provider submits the driver's completion record electronically to the registry.
The H endorsement theory curriculum requires a minimum of 20 total clock hours of instruction across the three required units.
ELDT completion for the H endorsement does not expire for purposes of taking the knowledge test, but the endorsement itself must be renewed and the knowledge test retaken at renewal.
A driver who already holds the H endorsement and is only renewing or transferring it is not required to repeat ELDT, but must still pass the knowledge test and the TSA security threat assessment.
ELDT is required for the H, N, P, and S endorsements and for the Class A and Class B CDL, but not for the Class C CDL or for the M endorsement.
The training provider must assess the driver's knowledge before certifying completion; self-certification by the driver alone is not sufficient.
Medical Examiner Certification Requirements for CDL Holders
A CDL holder must be examined by a medical examiner listed on the FMCSA National Registry of Certified Medical Examiners and must carry a valid Medical Examiner's Certificate.
The medical examiner completes the MCSA-5875 (Medical Examination Report) and issues the MCSA-5876 (Medical Examiner's Certificate) with an expiration date not to exceed 24 months.
A driver with a medical variance (such as a vision or insulin-treated diabetes exemption) must carry the exemption document with the Medical Examiner's Certificate.
The driver self-certifies the type of operation (interstate non-excepted, interstate excepted, or intrastate) and must provide the medical certificate to the state licensing agency.
The medical examiner must be recertified and listed on the National Registry; an examination by a non-listed provider is not valid for CDL purposes.
Vision standards require at least 20/40 corrected in each eye and a field of vision of at least 70 degrees in the horizontal meridian.
Hearing standards require the driver to perceive a forced whisper at not less than 5 feet, with or without a hearing aid, or to meet an equivalent audiometric standard.
A driver who fails to maintain a valid medical certificate is placed out of service and may not operate a CMV until a valid certificate is provided to the state.
Drug and Alcohol Clearinghouse Requirements
The FMCSA Drug and Alcohol Clearinghouse is a database that records drug and alcohol program violations for CDL drivers; employers, drivers, and medical review officers use it.
A pre-employment query of the Clearinghouse is required before an employer may hire a CDL driver, and the driver must consent to the query.
An annual query of the Clearinghouse is required for all employed CDL drivers, conducted as a limited query with the driver's consent on file.
A driver with a prohibited status (refusal to test, positive test, or actual knowledge) may not perform safety-sensitive functions until completing the return-to-duty process with a substance abuse professional.
A driver must be registered in the Clearinghouse to respond to employer queries and to view their own record; registration is separate from the CDL itself.
Employers must report violations, including positive test results, refusals, and actual knowledge, to the Clearinghouse within three business days.
A driver may request a correction of Clearinghouse information and may designate a substance abuse professional or other representative to access the record.
The Clearinghouse final rule requires reporting of violations for all CDL drivers, including those operating in excepted interstate and intrastate commerce.
Hazardous Materials Endorsement (H) Knowledge Requirements
An H endorsement is required to drive a CMV transporting placarded quantities of hazardous materials, and it is added to a Class A, B, or C CDL; it cannot stand alone.
The hazmat knowledge test is a separate written test from the general CDL tests; passing it requires a score of at least 80 percent, and it must be retaken at each renewal.
The hazardous materials table (49 CFR 172.101) assigns each material its hazard class, UN/NA identification number, packing group, label codes, and required placards.
Placards are required for 1,001 pounds or more aggregate gross weight of a single hazard class, for any quantity of a Table 2 material in the placarding table, and for bulk packages.
Class 1 explosives are divided into six compatibility groups for mixed loading; Division 1.1 through 1.3 generally may not be loaded with detonators or with Division 1.5.
Shipping papers must accompany the shipment, be within the driver's reach while seated, and be kept in a pouch on the driver's door or in clear view when the driver leaves the cab.
A hazardous materials endorsement holder must report to the employer any suspension, revocation, or cancellation of the endorsement, and must not operate a CMV hauling hazmat without a valid endorsement.
The security threat assessment (STA) required for the H endorsement is conducted by TSA; a disqualifying criminal history or a finding of not being a lawful permanent resident results in denial.
Rail crossings, tunnels, and populated areas may restrict hazmat routes; the driver must follow designated routes and stop requirements and may not smoke or carry a firearm while operating a placarded vehicle.
Entry-Level Driver Training (ELDT) for the Hazardous Materials Endorsement
ELDT for the H endorsement is required before the applicant may take the state hazmat knowledge test; training must be completed by a registered training provider.
The H endorsement curriculum covers basic introductory hazmat content, operational requirements, and reporting and recordkeeping, plus a security awareness module.
The training provider must be listed on the FMCSA Training Provider Registry, and the provider submits the driver's completion record electronically to the registry.
The H endorsement theory curriculum requires a minimum of 20 total clock hours of instruction across the three required units.
ELDT completion for the H endorsement does not expire for purposes of taking the knowledge test, but the endorsement itself must be renewed and the knowledge test retaken at renewal.
A driver who already holds the H endorsement and is only renewing or transferring it is not required to repeat ELDT, but must still pass the knowledge test and the TSA security threat assessment.
ELDT is required for the H, N, P, and S endorsements and for the Class A and Class B CDL, but not for the Class C CDL or for the M endorsement.
The training provider must assess the driver's knowledge before certifying completion; self-certification by the driver alone is not sufficient.
Medical Examiner Certification Requirements for CDL Holders
A CDL holder must be examined by a medical examiner listed on the FMCSA National Registry of Certified Medical Examiners and must carry a valid Medical Examiner's Certificate.
The medical examiner completes the MCSA-5875 (Medical Examination Report) and issues the MCSA-5876 (Medical Examiner's Certificate) with an expiration date not to exceed 24 months.
A driver with a medical variance (such as a vision or insulin-treated diabetes exemption) must carry the exemption document with the Medical Examiner's Certificate.
The driver self-certifies the type of operation (interstate non-excepted, interstate excepted, or intrastate) and must provide the medical certificate to the state licensing agency.
The medical examiner must be recertified and listed on the National Registry; an examination by a non-listed provider is not valid for CDL purposes.
Vision standards require at least 20/40 corrected in each eye and a field of vision of at least 70 degrees in the horizontal meridian.
Hearing standards require the driver to perceive a forced whisper at not less than 5 feet, with or without a hearing aid, or to meet an equivalent audiometric standard.
A driver who fails to maintain a valid medical certificate is placed out of service and may not operate a CMV until a valid certificate is provided to the state.
Drug and Alcohol Clearinghouse Requirements
The FMCSA Drug and Alcohol Clearinghouse is a database that records drug and alcohol program violations for CDL drivers; employers, drivers, and medical review officers use it.
A pre-employment query of the Clearinghouse is required before an employer may hire a CDL driver, and the driver must consent to the query.
An annual query of the Clearinghouse is required for all employed CDL drivers, conducted as a limited query with the driver's consent on file.
A driver with a prohibited status (refusal to test, positive test, or actual knowledge) may not perform safety-sensitive functions until completing the return-to-duty process with a substance abuse professional.
A driver must be registered in the Clearinghouse to respond to employer queries and to view their own record; registration is separate from the CDL itself.
Employers must report violations, including positive test results, refusals, and actual knowledge, to the Clearinghouse within three business days.
A driver may request a correction of Clearinghouse information and may designate a substance abuse professional or other representative to access the record.
The Clearinghouse final rule requires reporting of violations for all CDL drivers, including those operating in excepted interstate and intrastate commerce.