Title 21

PART 331 SUBPART C

Subpart C - Testing Procedures

• 21 U.S.C. 321, 351, 352, 353, 355, 360, 371.
• 39 FR 19874, June 4, 1974, unless otherwise noted.

21:5.0.1.1.12.3.1.1	SECTION 331.20	331.20 Determination of percent contribution of active ingredients.
21:5.0.1.1.12.3.1.2	SECTION 331.21	331.21 Test modifications.

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