7 C.F.R. § 93.4

(a) The majority of analytical methods for citrus products are found in the Official Methods of Analysis of AOAC INTERNATIONAL, Volumes I & II, AOAC INTERNATIONAL, 481 North Frederick Avenue, Suite 500, Gaithersburg, MD 20877-2417.

(b) Other analytical methods for citrus products may be used as approved by the AMS Deputy Administrator, Science and Technology (S&T).