CAR Code Compliance & Standards 2 — Questions and Answers
Question 1: Under EPA regulations, which document must accompany a refrigerant transfer when moving recovered refrigerant off-site to a reclaimer?
- Bill of lading only
- Material Safety Data Sheet only
- Refrigerant tracking form showing quantity and type (Correct answer)
- Insurance certificate
Correct answer: Refrigerant tracking form showing quantity and type
EPA Section 608 requires that refrigerant transfers off-site be accompanied by documentation indicating the refrigerant type and quantity for traceability.
Question 2: Which ANSI/ASHRAE standard provides safety classifications for refrigerants used in appliances, grouping them by toxicity and flammability?
- ASHRAE 90.1
- ASHRAE 34 (Correct answer)
- ASHRAE 15
- ASHRAE 62.1
Correct answer: ASHRAE 34
ASHRAE Standard 34 assigns safety group designations (e.g., A1, A2L, B2) to refrigerants based on toxicity and flammability.
Question 3: Which federal law established the framework requiring the EPA to regulate substances that deplete the stratospheric ozone layer, including refrigerants?
- Clean Water Act
- Resource Conservation and Recovery Act
- Clean Air Act Title VI (Correct answer)
- Toxic Substances Control Act
Correct answer: Clean Air Act Title VI
Clean Air Act Title VI (Section 608 and 609) gave EPA authority to regulate ozone-depleting refrigerants and mandate proper handling.
Question 4: A technician is recycling a window AC unit and finds the refrigerant has already been vented. Under EPA Section 608, what is the correct action?
- Proceed with appliance recycling and document the finding (Correct answer)
- Refuse to process the unit entirely
- Re-charge the unit before recycling
- Report nothing; venting by prior owner is not your liability
Correct answer: Proceed with appliance recycling and document the finding
If refrigerant was already vented before receipt, the recycler should document the finding and proceed with processing; they are not liable for prior venting.
Question 5: What is the maximum allowable leak rate for a comfort cooling appliance containing 50 lbs or more of refrigerant before repair is required under EPA rules?
- 5% per year
- 10% per year
- 15% per year (Correct answer)
- 20% per year
Correct answer: 15% per year
EPA regulations set a 15% annual leak rate threshold for comfort cooling appliances with ≥50 lbs of refrigerant, above which repair is required.
Question 6: Which standard governs the safety requirements for hermetically sealed motor compressors used in household refrigerators and freezers?
- UL 471
- UL 250
- UL 1012
- UL 484 (Correct answer)
Correct answer: UL 484
UL 484 covers room air conditioners and hermetically sealed household refrigerators/freezers for safety compliance.
Question 7: Under DOE appliance efficiency regulations, which agency sets the minimum energy efficiency standards for residential refrigerators sold in the US?
- EPA
- DOE (Correct answer)
- FTC
- CPSC
Correct answer: DOE
The Department of Energy (DOE) establishes and enforces minimum energy conservation standards for residential refrigerators under the Energy Policy and Conservation Act.
CAR Code Compliance & Standards 2
Under EPA regulations, which document must accompany a refrigerant transfer when moving recovered refrigerant off-site to a reclaimer?