The NESHAP WWWWWW or “6W rule,” affects plating and polishing facilities, and applies to plating and polishing tanks, dry mechanical polishing operations, and thermal spraying operations that use or emit compounds of one or more of the following metal toxic air pollutants: cadmium, chromium, lead, manganese and nickel. Though this rule does not affect processes subject to Subpart N, some of the resources provided also cover Subpart N Hard and Decorative Chrome Plating. 

• EPA’s 6W NESHAP Plating and Polishing website with rule, technical and implementation information  

• EPA resources for clean air standards for all metal production facilities 

•  Surface Technology Environmental Resource Center provides a one-stop shop for industry-specific environmental compliance and pollution prevention resources 

• Compliance assistance materials specific for air rules 

• 6W fact sheet 

State resources

• TN Department of Environment & Conservation has published several 6W NESHAP resources including example notification documents and a compliance checklist. 

• IN Regulatory Summary 

• IA General Summary of Requirements 

• OR Presentation on NESHAP Plating and Polishing Standards