40 CFR § 26.1203
Prohibition of research involving intentional exposure of any human subject who is a pregnant woman (and therefore her fetus), a nursing woman, or a child
June 9, 2020
Notwithstanding any other provision of this part, under no circumstances shall a person conduct or support research covered by §26.1201 that involves intentional exposure of any human subject who is a pregnant woman (and therefore her fetus), a nursing woman, or a child.
[71 FR 36175, June 23, 2006]