---
kind: "section"
citation: "40 C.F.R. § 26.202"
title: "40"
number: "26.202"
heading: "Definitions."
url: "https://uscodex.org/cfr/40/26.202"
---

# §26.202. Definitions.


The definitions in [§ 26.102](/cfr/40/26.102.md) shall be applicable to this subpart as well. In addition, the definitions at [45 CFR 46.202(a) through (f)](/cfr/45/46.202.md?p=a..f) and at [45 CFR 46.202(h)](/cfr/45/46.202.md?p=h) are applicable to this subpart.

- (a) Research involving intentional exposure of a human subject means a study of a substance in which the exposure to the substance experienced by a human subject participating in the study would not have occurred but for the human subject's participation in the study.
- (b) **A <I>child</I> is a person who has not attained the age of 18 years.**

## Notes

### Source

Source: 71 FR 6168, Feb. 6, 2006, unless otherwise noted.

### Authority

Authority: 5 U.S.C. 301; 7 U.S.C. 136a(a) and 136w(a)(1); 21 U.S.C. 346a(e)(1)(C); sec. 201, Pub. L. 109-54, 119 Stat. 531; and 42 U.S.C. 300v-1(b).

### Source

Source: 56 FR 28012, 28022, June 18, 1991, unless otherwise noted.