StacksVerified U.S. regulatory reference

40 CFR §413.21

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov
For the purpose of this subpart:
  1. (a)The term sq m (“sq ft”) shall mean the area plated expressed in square meters (square feet).
  2. (b)The term operation shall mean any step in the electroplating process in which a metal is electrodeposited on a basis material and which is followed by a rinse: This includes the related operations of alkaline cleaning, acid pickle, stripping, and coloring when each operation is followed by a rinse.