21 CFR 660.26 - Specificity tests and avidity tests.

Regulations last checked for updates: May 01, 2025

Title 21 - Food and Drugs last revised: Apr 28, 2025

§ 660.26 - Specificity tests and avidity tests.

Specificity and avidity tests shall be performed using test procedures approved by the Director, Center for Biologics Evaluation and Research.

[53 FR 12764, Apr. 19, 1988, as amended at 67 FR 9587, Mar. 4, 2002; 70 FR 14985, Mar. 24, 2005]

authority: 21 U.S.C. 321,331,351,352,353,355,360,360c,360d,360h,360i,371,372; 42 U.S.C. 216,262,263,263a,264

cite as: 21 CFR 660.26