40 CFR § 766.12 - Testing guidelines.
---
identifier: "/us/cfr/t40/s766.12"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "40 CFR § 766.12 - Testing guidelines."
title_number: 40
title_name: "Protection of Environment"
section_number: "766.12"
section_name: "Testing guidelines."
chapter_name: "ENVIRONMENTAL PROTECTION AGENCY"
subchapter_number: "R"
subchapter_name: "TOXIC SUBSTANCES CONTROL ACT"
part_number: "766"
part_name: "DIBENZO-PARA-DIOXINS/DIBENZOFURANS"
positive_law: false
currency: "2026-04-05"
last_updated: "2026-04-05"
format_version: "1.1.0"
generator: "[email protected]"
authority: "15 U.S.C. 2603 and 2607."
regulatory_source: "52 FR 21437, June 5, 1987, unless otherwise noted."
cfr_part: "766"
---
# 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.
[60 FR 34466, July 3, 1995, as amended at 77 FR 46292, Aug. 3, 2012]