The Texas CDL Applicant With a Deferred DUI
An applicant comes to your district with a Texas Class B CDL, passenger (P) endorsement, and air-brake restriction removed. She moved to New Mexico 40 days ago and wants to drive a 72-passenger school bus. She provides a medical examiner's certificate dated 11 months ago that expires in 10 days. Her driving record shows two speeding convictions in the last 12 months, one 15 mph over, and a 2022 deferred adjudication for DUI in Texas. She says the DUI was dismissed and asks whether she can start driving tomorrow after taking the S endorsement test. The district requires a background check and drug test.
1. What licensing and endorsement steps must be verified before she can drive a school bus in New Mexico?
Read the worked answer
She holds a Texas Class B with P, but she is now a New Mexico resident and must transfer her CDL and add the school bus (S) endorsement through the New Mexico MVD process. Verify her residency, current medical certification, and driving record. The S endorsement normally requires a knowledge test and a skills test, plus the district's background check and drug test. Her P endorsement does not automatically become S. She also needs the district's school-bus driver training and any state-required school bus certification. She cannot start tomorrow on the Texas license and a promise to test later; the transfer, S endorsement, medical certificate, and background/drug results must be in order first.
2. How should you treat the two speeding convictions and the deferred DUI adjudication?
Read the worked answer
Do not decide the disqualification question alone. A speeding conviction of 15 mph or more over the limit can count as a serious traffic violation, and multiple serious violations within a defined period can disqualify a CDL holder. The deferred adjudication for DUI must be disclosed and reviewed against the CDL disqualification rules; a dismissal or deferred status does not automatically erase it for licensing purposes. Refer the full record to the MVD and the district's HR/legal office, request certified dispositions, and do not put her behind the wheel until the eligibility determination is in writing. A verbal explanation from the applicant is not enough.
3. What about the medical certificate expiring in 10 days?
Read the worked answer
She may be able to drive only while the certificate is valid and only if the district accepts the remaining time, but a school bus operation should not start a new driver whose medical certification expires in 10 days without a plan for renewal. Require a current medical examiner's certificate before assignment, confirm the examiner is on the approved registry, and calendar the expiration. If the district requires a pre-employment physical or a longer minimum validity, follow that policy. The medical card is not a substitute for the S endorsement, background check, or drug test.