StacksVerified U.S. regulatory reference

40 CFR §60.397

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
The following physical or operational changes are not, by themselves, considered modifications of existing facilities:
  1. (a)Changes as a result of model year changeovers or switches to larger cars.
  2. (b)Changes in the application of the coatings to increase coating film thickness.