StacksVerified U.S. regulatory reference

40 CFR §141.52

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
  1. (a)MCLGs for the following contaminants are as indicated:
  2. (b)The MCLG identified in paragraph (a)(4) of this section is applicable until March 31, 2016. The MCLG identified in paragraph (a)(6) of this section is applicable beginning April 1, 2016.