Practice Test Geeks(UST) Underground Storage Tank Certification Practice Test
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Regulatory Compliance & EPA Standards Flashcards

7 cards from real UST practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

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  1. Under 40 CFR Part 280, what is the maximum allowable threshold for a UST system to be exempt from federal regulations based on tank capacity?

    Answer: 110 gallons

    UST systems with a capacity of 110 gallons or less are exempt from the federal UST regulations under 40 CFR Part 280.

  2. Which EPA regulation specifically governs secondary containment requirements for new UST installations after October 13, 2015?

    Answer: 40 CFR Part 280.20

    40 CFR Part 280.20 sets design and construction standards for new UST systems, including secondary containment requirements effective after October 13, 2015.

  3. What is the EPA's required response time for owners/operators to begin an investigation after a suspected release is confirmed?

    Answer: 24 hours

    Upon confirmation of a release, owners/operators must begin corrective action and notify the implementing agency within 24 hours.

  4. A UST system containing a mixture of petroleum and hazardous substances is regulated under which primary federal framework?

    Answer: RCRA Subtitle I only

    UST systems are regulated primarily under RCRA Subtitle I, regardless of whether they contain petroleum, hazardous substances, or a mixture.

  5. Under EPA's 2015 UST rule, operators of UST systems must complete Class C operator training within how many days of assuming duties?

    Answer: 30 days

    Class C operators must be trained within 30 days of assuming their UST-related duties according to the 2015 federal UST regulation update.

  6. Which document must be maintained on-site or immediately accessible for each UST system under 40 CFR Part 280?

    Answer: Release detection records for the most recent 3 years

    Owners/operators must keep release detection records for the most recent 3 years and make them available for inspection.

  7. Under the 2015 EPA UST regulation, what new requirement was added for all walkways and sumps associated with UST systems?

    Answer: They must be inspected for liquid accumulation every 30 days

    The 2015 rule requires that containment sumps and spill prevention equipment be inspected every 30 days for liquid accumulation and integrity.

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Sources & references

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  1. shop.iccsafe.org — Exam format, time limit, fees · verified Oct 2026
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