New maximum achievable control technology (MACT) standards will apply to facilities with surface coating operations that emit or have the potential to emit (PTE) more than the MACT standard thresholds of 10 tons per year (tpy) or more of any single HAP or 25 tpy or more of total HAPs (THAP). A facility's PTE is the quantity of emissions that would be generated at maximum capacity under a facility's physical or operational design.
