US National AIM
Rules for Architectural & Industrial Maintenance Coatings
In 1998, the US EPA issued a nationwide Architectural and Industrial Maintenance (AIM) Coatings rule limiting emissions from volatile organic compounds (VOC) pursuant with the Clean Air Act. The purpose of this rule was based on the EPA’s determination that VOC emissions from the use of architectural coatings had the potential to contribute to ozone levels.
US National AIM Rule
Ozone is a major component of smog which had been found to cause negative health and environmental impacts when present in high concentrations at ground level. This rule required products manufactured on or after the implementation date to meet the VOC limits for the defined Architectural and Industrial Maintenance (AIM) coating categories.
AIM Rule Exemptions:
- Small container exemption allows the sale of coatings above the maximum VOC limits if packaged in containers of one liter or less.
- Sell-through provision allows the sale of coatings above the maximum VOC limits if manufactured prior to the rule's effective date, September 13, 1999.
- Manufacturers can choose to pay an exceedance fee to the US EPA for coatings above the maximum VOC Limits.
For the most current information on the National AIM rule, please visit www.epa.gov.
VOC Concentration Limits
For the most up-to-date and accurate regulatory data, please consult the appropriate regulatory organization www.ec.gc.ca.
COATING CATEGORY
VOC (G/L)
Flat
250
Non-Flat
380
Non-Flat High Gloss
380
Industrial Maintenance General
450
Industrial Maintenance High Temp
650
Primer
350
Quick Dry Primer
450
Specialty Primer
350
Quick Dry Enamel
450
Floor
400
Rust Preventative
400
Stains Semi-Transparent/Opaque
550/350
Dry Fog
400
Varnish
450
Waterproofing Sealer - Wood
600
Waterproofing Sealer - Concrete
600