40 CFR 766.12: Testing guidelines.

Analytical test methods must be developed using methods equivalent to those described or reviewed in Guidelines for the Determination of Polyhalogenated Dibenzo-p-dioxins and Dibenzofurans in Commercial Products. Copies are available from the Director, Environmental Assistance Division (7408), Office of Pollution Prevention and Toxics, U.S.Environmental Protection Agency, Room E-543B, 1200 Pennsylvania Ave., NW., Washington, DC 20460, Telephone: (202) 554-1404, TDD: (202) 544-0551. Publicly available docket materials are available at the addresses in § 700.17(b)(1) and (2) of this chapter.