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Environmental Standards Flashcards

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

Read the first 7 Environmental Standards flashcards as text
  1. Which federal regulation requires technicians who service HVAC equipment containing refrigerants to be EPA-certified?

    Answer: Clean Air Act Section 608

    Clean Air Act Section 608 sets the rules for handling refrigerant and requires technicians to be certified.

  2. Under EPA refrigerant management rules, what is the leak rate threshold that triggers mandatory repair for comfort cooling appliances holding 50 or more pounds of refrigerant?

    Answer: 10%

    Comfort cooling appliances must be repaired when the leak rate exceeds 10%, which is stricter than the threshold for commercial refrigeration.

  3. The EPA Lead Renovation, Repair and Painting (RRP) Rule applies to work that disturbs paint in housing and child-occupied facilities built before which year?

    Answer: 1978

    Lead-based paint was banned for residential use in 1978, so the RRP Rule covers pre-1978 target housing and child-occupied facilities.

  4. Asbestos-containing material is classified as 'friable' when it:

    Answer: Can be crumbled or reduced to powder by hand pressure

    Friable material releases fibers easily because hand pressure can crumble it, which makes it a higher exposure risk.

  5. Which ASHRAE standard sets minimum ventilation rates for acceptable indoor air quality in commercial buildings?

    Answer: ASHRAE Standard 62.1

    ASHRAE 62.1 sets ventilation rates and other measures for acceptable indoor air quality in nonresidential buildings.

  6. Spent mercury-containing fluorescent lamps from a commercial building are most commonly managed under RCRA as:

    Answer: Universal waste

    EPA's universal waste rules simplify how commonly generated hazardous wastes like lamps, batteries, and mercury devices are collected and recycled.

  7. What is the EPA's recommended action level for indoor radon concentration?

    Answer: 4 pCi/L

    EPA recommends mitigation when indoor radon is at or above 4 picocuries per liter.

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Sources & references

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  1. learn.nahro.org — Eligibility, fees, score validity · verified Oct 2026
  2. nahro.org — Renewal, retake policy · verified Oct 2026