The following information applies to facilities affected by the National Emission Standards for Hazardous Air Pollutants (NESHAP) for Miscellaneous Surface Coating Operations (40 CFR, Part 63, Subpart HHHHHH) referred to here as "6H." This rule applies to certain facilities that spray coating. This rule applies to facilities that spray coatings that contain one or more of the following: cadmium, chromium, lead, nickel, or manganese to motor vehicles, mobile equipment or other products made of metal or plastic.
Basic Requirements for Compliance
- Painter Training
- Painters must be trained in setup and maintenance of spray equipment, spray technique, booth and filter maintenance, and environmental compliance. Refresher training is required every five years.
- Spray Booth Exhaust Systems
- Filter systems must have a 98% collection efficiency.
- Spray Guns
- Coatings must be applied using HVLP, electrostatic, airless or air-assisted airless spray guns.
- Maintain records on painter training, filter efficiency, notifications and more.
- Fact Sheet (PDF)
- Iowa DNR Initial Notification - Notification of Compliance Status/Petition for Exemption (PDF) / (DOC)
- Iowa DNR Notification Letter for Permit-by-Rule for Spray Booths (PDF) / (DOC)
- Permit-by-Rule Log (DOC)
*Real Player is required to view the following videos. Click here to download for FREE. For optimal viewing, use Internet Explorer browser.
Before completing the tutorials, please print the general information and forms above.
- Surface Coating Rule (6H) Tutorial
- Introductory PowerPoint presentation slides (PDF)
- 6H Notification of Compliance Tutorial
These resources and information have been developed by the Iowa Air Emissions Assistance Program, a program focused on training and educating Iowa small businesses with less than 100 employees. The Iowa Air Emissions Assistance Program is funded by the Iowa Department of Natural Resources. This information is intended solely as guidance, cannot be used to bind the Iowa Department of Natural Resources and is not a substitute for reading applicable statutes and regulations.