OSHA 15-Hr Disaster Site Worker exam-day guide
OSHA 15-Hr Disaster Site Worker · Prepare for the day ahead.
Your checklist
Government-issued photo ID
Bring an unexpired driver's license, state ID, passport, or military ID. Name must match the name on your registration. If your registration name differs slightly (nickname, maiden name), confirm with the provider before test day how to resolve it.
Confirmation of registration and test location
Have the provider's confirmation email or letter on hand, printed or saved offline on your phone. Verify start time, address, room number, and parking or transit instructions the day before. If you never received a confirmation, confirm with the provider.
Course completion documentation
Some providers ask for proof you completed the 15-hour disaster site worker course before sitting the exam. Check your enrollment materials and confirm with the provider whether any documentation is required at check-in.
Knowledge of what the exam covers
Be ready on the core disaster-site topics: hazard recognition, personal protective equipment, respiratory protection basics, decontamination, site control and zones, heavy equipment and struck-by/caught-in hazards, electrical and fall hazards, heat and cold stress, bloodborne pathogens, and the roles of OSHA, NIOSH, and the Incident Command System.
Calculator and writing materials only if permitted
Most disaster site worker exams are knowledge-based and need no calculator. If you want to bring one or your own pencils, confirm with the provider what is allowed; many testing rooms supply everything and prohibit personal items at the desk.
Arrival plan with buffer time
Plan to arrive at least 30 minutes early to allow for parking, security screening, and check-in. Late arrivals may be refused entry; confirm with the provider what the cutoff is.
Water, snack, and any needed medication
Bring water and a light snack for before or after the test, and any prescription medication you may need. Food and drink are usually not allowed at the testing desk, so confirm with the provider where you can store them.
Leave prohibited items at home or in the car
Phones, smartwatches, notes, and study materials are typically not allowed in the testing room. Rather than risk confiscation, leave them behind or plan a secure place to store them. Confirm the provider's electronics policy.
Rest and a realistic study review
The night before, review your own notes and the course outline rather than cramming new material. Aim for a normal night's sleep; fatigue is the most common avoidable cause of careless errors.
Accessibility or language accommodations arranged in advance
If you need extra time, a separate room, a reader, or testing in another language, request it well before test day. Accommodations are rarely granted on the spot. Confirm with the provider what documentation they require.
A plan for your score and next steps
Ask the provider in advance when and how results are reported, what the passing score is, and whether a retake is available and at what cost. Knowing this reduces stress and tells you whether to schedule a retake window.
Plan the day
Reread your course materials and outline the major hazard categories: fall, struck-by, caught-in/between, electrical, heat and cold, respiratory, chemical, and biological. For each, write one control you would use on a disaster site. Identify your two weakest topics and spend your remaining study time there. Confirm the test time and location in writing, and check the provider's website or email for any change in schedule.
Take one full-length practice set under timed conditions if your course offers one, then review every wrong answer and note why the correct answer is right. Stop studying new material after this point. Confirm transportation and parking, and decide what you will carry in.
Do a light review of key definitions only: the hierarchy of controls, the purpose of site control zones (hot, warm, cold), when respirators are required and the limits of a respirator, decontamination steps, and the difference between OSHA's general industry and construction standards where relevant. Lay out your ID, confirmation, and clothing. Set two alarms. Avoid alcohol and heavy meals, and go to bed at a normal hour.
Eat a normal breakfast and drink water. Arrive at the site at least 30 minutes early. Present your ID and confirmation, follow the proctor's instructions for storing personal items, and use the restroom before the test begins. If you feel anxious, take several slow breaths; a short delay before starting is better than rushing the first questions.
Read each question fully and watch for qualifiers such as EXCEPT, BEST, FIRST, and MOST LIKELY. Answer the easy questions first, mark uncertain ones, and return to them. For scenario questions, ask what the worker or supervisor should do first, and prefer the control that eliminates or reduces the hazard at its source over one that relies only on PPE. Manage your time: check the clock at the halfway point and make sure you have answered every question. If you must guess, eliminate clearly wrong options first.
Note any questions you were unsure about and look up the answers later so you learn from them. Ask the proctor when and how results will be reported, and confirm the retake policy if you are not confident. Keep your completion records for your employer's safety files.
Rules to check
Bring valid, unexpired government-issued photo ID. The name on your ID must match your registration; if it does not, confirm with the provider before test day how to correct it.
Follow the proctor's instructions on personal items. Phones, smartwatches, notes, and study materials are commonly prohibited in the testing room; confirm the provider's electronics and storage policy in advance and do not rely on being allowed to keep a phone at your desk.
Do not communicate with other candidates during the test and do not attempt to copy, photograph, or share exam content. Doing so can void your score and may end your eligibility. If you have a question, raise your hand and ask the proctor.
Breaks are usually limited and may be scheduled rather than taken on demand. Ask the proctor at the start how breaks work, whether the clock stops, and whether you must sign out and back in. Confirm with the provider if you anticipate needing extra breaks for a medical reason.
Scoring is typically based on a percentage of correct answers with a passing threshold set by the provider. Confirm with the provider what the passing score is, whether questions are weighted, and whether wrong answers count against you, since some exams do not penalize guessing.
If you arrive late, you may be refused entry or given less time. Confirm with the provider what the late-arrival cutoff is rather than assuming you will be accommodated.
Request any accommodation, such as extra time, a separate room, a reader, or testing in another language, well before test day and provide the documentation the provider requires. Accommodations are generally not arranged on the spot.
Report any testing irregularity, such as a broken computer, a distracting environment, or a misprinted question, to the proctor immediately and ask that it be noted. Follow up with the provider afterward if you believe it affected your performance.