StacksVerified U.S. regulatory reference

40 CFR §26.203

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
Notwithstanding any other provision of this part, under no circumstances shall EPA conduct or support research involving intentional exposure of any human subject who is a pregnant woman (and therefore her fetus), a nursing woman, or a child.