HAZWOPER Practice Test

Full Mock Exams

How This Practice Test Works

• Each attempt draws 15–20 questions at random from our pool of 181 and shuffles the answer order. Score 80% or more and the next test moves up a difficulty level; under 50% and it eases back.
• After every answer you see an explanation and the OSHA reference behind it.
• We use 70% as a practice target. OSHA sets no HAZWOPER pass score; your training provider does. Aim for 80% or better here.
• There is no sign-up. Your level is saved only in this browser.

These are original questions written by our editorial team from the published OSHA. They are not real exam questions. Questions follow the eCFR text of 29 CFR 1910.120, not any provider exam.

What the Question Pool Covers

Every question cites the rule behind its answer. Counting those references shows where the pool puts its weight:

Sample Questions With Worked Answers

A few questions from the pool with the answer and explanation, so you can see the style before you start.

1. Which OSHA standard is known as HAZWOPER?

   Answer: 29 CFR 1910.120. Source text: “Hazardous Waste Operations and Emergency Response…”

   Reference: 29 CFR §1910.120(a)

2. HAZWOPER covers clean-up operations required by a governmental body at:

   Answer: Uncontrolled hazardous waste sites. Source text: “conducted at uncontrolled hazardous waste sites…”

   Reference: 29 CFR §1910.120(a)(1)(i)

3. HAZWOPER covers corrective actions involving clean-up at sites covered by:

   Answer: RCRA. Source text: “Corrective actions involving clean-up operations at sites covered by the Resource Conservation and Recovery Act…”

   Reference: 29 CFR §1910.120(a)(1)(ii)

4. HAZWOPER covers operations at treatment, storage and disposal (TSD) facilities regulated by:

   Answer: 40 CFR parts 264 and 265. Source text: “treatment, storage, and disposal (TSD) facilities regulated by 40 CFR parts 264 and 265…”

   Reference: 29 CFR §1910.120(a)(1)(iv)

5. HAZWOPER covers emergency response operations for releases of hazardous substances:

   Answer: Without regard to the location of the hazard. Source text: “without regard to the location of the hazard…”

   Reference: 29 CFR §1910.120(a)(1)(v)

How Difficulty Is Spread Across the Pool

Each question is tagged Foundation, Intermediate or Advanced, and each new test favors questions close to your current level that you have not seen yet in this browser. This is how the 181 HAZWOPER questions divide:

Because unseen questions come first, repeated attempts work through the pool rather than repeating the same items. Note the reference on every miss and reread that section before your next attempt.

Study Before You Test

• HAZWOPER Exam Guide: OSHA 29 CFR 1910.120 Training, Refresher and Test
• HAZWOPER Full Mock Exam
• OSHA General Industry Practice Test

Sources

• 29 CFR 1910.120 Hazardous Waste Operations and Emergency Response