C33 Environmental Compliance and VOC Regulations 4 — Questions and Answers
Question 1: Under California's Architectural Coatings SCM, what is the VOC limit for flat coatings?
- 50 g/L (Correct answer)
- 100 g/L
- 150 g/L
- 250 g/L
Correct answer: 50 g/L
California's South Coast AQMD and statewide SCM set the VOC limit for flat coatings at 50 g/L.
Question 2: Which California agency enforces VOC regulations for architectural coatings at the statewide level?
- CalEPA
- CARB (California Air Resources Board) (Correct answer)
- Cal/OSHA
- Department of Toxic Substances Control
Correct answer: CARB (California Air Resources Board)
CARB sets and enforces statewide VOC limits for architectural coatings through the Suggested Control Measure (SCM).
Question 3: A painting contractor is applying a primer in a South Coast AQMD district. What VOC limit applies to interior wood primers?
- 100 g/L
- 150 g/L (Correct answer)
- 200 g/L
- 350 g/L
Correct answer: 150 g/L
South Coast AQMD Rule 1113 limits interior wood primers to 150 g/L VOC content.
Question 4: What does the term 'VOC exempt compounds' mean in California coating regulations?
- Compounds that do not require labeling
- Organic compounds excluded from VOC calculations because they have negligible photochemical reactivity (Correct answer)
- Coatings approved for indoor use only
- Products sold in containers under one liter
Correct answer: Organic compounds excluded from VOC calculations because they have negligible photochemical reactivity
VOC-exempt compounds like acetone are excluded from VOC calculations because CARB determined they have negligible ozone-forming potential.
Question 5: Under CARB regulations, how must VOC content be reported on product labels?
- As a percentage by weight
- In grams per liter (g/L) of coating as applied, minus water and exempt compounds (Correct answer)
- In pounds per gallon including water
- As a ratio of solvent to solids
Correct answer: In grams per liter (g/L) of coating as applied, minus water and exempt compounds
CARB requires VOC content to be expressed in g/L of coating minus water and exempt compounds, reflecting the regulatory calculation method.
Question 6: Which situation would require a California painting contractor to file a Hazardous Waste Manifest?
- Disposing of empty latex paint cans in a dumpster
- Transporting used solvent-based paint waste to a licensed hazardous waste facility (Correct answer)
- Storing unused latex paint on-site for future use
- Applying primer containing less than 100 g/L VOC
Correct answer: Transporting used solvent-based paint waste to a licensed hazardous waste facility
Solvent-based paint waste is classified as hazardous waste in California, requiring a Hazardous Waste Manifest when transported off-site.
Question 7: A contractor needs to apply an anti-corrosive coating to a steel structure. Under California SCM, what is the VOC limit for anti-corrosive coatings for metal surfaces?
- 100 g/L
- 250 g/L (Correct answer)
- 400 g/L
- 500 g/L
Correct answer: 250 g/L
California's SCM sets the VOC limit for anti-corrosive coatings applied to metal surfaces at 250 g/L.
C33 Environmental Compliance and VOC Regulations 4
Under California's Architectural Coatings SCM, what is the VOC limit for flat coatings?