40 CFR Part 257, Appendix IV
Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
Common name 1
Antimony
Arsenic
Barium
Beryllium
Cadmium
Chromium
Cobalt
Fluoride
Lead
Lithium
Mercury
Molybdenum
Selenium
Thallium
Radium 226 and 228 combined
1 Common names are those widely used in government regulations, scientific publications, and commerce; synonyms exist for many chemicals.
[80 FR 21500, Apr. 17, 2015]