[Code of Federal Regulations]
[Title 40, Volume 28]
[Revised as of July 1, 2003]
From the U.S. Government Printing Office via GPO Access
[CITE: 40CFR766.1]

[Page 804]
 
                   TITLE 40--PROTECTION OF ENVIRONMENT
 
         CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED)
 
PART 766--DIBENZO-PARA-DIOXINS/DIBENZOFURANS--Table of Contents
 
                      Subpart A--General Provisions
 
Sec. 766.1  Scope and purpose.


    (a) This part identifies requirements for testing under section 4 of 
the Toxic Substances Control Act (TSCA), 15 U.S.C. 2603, to ascertain 
whether certain specified chemical substances may be contaminated with 
halogenated dibenzodioxins (HDDs)/dibenzofurans (HDFs) as defined in 
Sec. 766.3, and requirements for reporting under section 8 of TSCA, 15 
U.S.C. 2607.
    (b) Section 766.35(b) requires manufacturers and processors of 
chemical substances identified in Sec. 766.25 to submit to EPA:
    (1) Any existing test data showing analysis of the chemical 
substances for concentrations of HDDs/HDFs, applicable protocols, and 
the results of the analysis for HDDs/HDFs, (2) allegations of 
significant adverse reactions to HDDs/HDFs, compiled in accordance with 
part 717 of this chapter, and (3) health and safety studies on the HDDs/
HDFs, in accordance with applicable provisions of part 716 of this 
chapter.
    (c) Section 766.35(a) requires manufacturers and, under certain 
circumstances, processors of chemical substances identified in 
Sec. 766.25 to submit letters of intent to test and protocols for the 
analysis of the chemical substances for the presence of HDDs/HDFs. 
Section 766.20 requires these manufacturers and processors to test their 
chemical substances for the presence of HDDs/HDFs. Any submissions must 
be in accordance with the EPA Procedures Governing Testing Consent 
Agreements and Test Rules contained in part 790 of this chapter and any 
modifications to such procedures contained in this part.
    (d) Section 766.32 specifies conditions under which persons required 
to test may request an exclusion or waiver from testing.
    (e) Deadlines for submission to EPA of protocols, reports, studies, 
and test results are specified in part 790, subpart C and Sec. 766.35.
    (f) Sections 766.10, 766.12, 766.14, 766.16, and 766.18 prescribe 
analytical methods required; Sec. 766.27 prescribes target levels of 
quantitation (LOQ) for each congener for which quantitation is required.
    (g) If results of existing tests or tests performed under this part 
indicate the presence of HDDs/HDFs in the identified chemical substance 
above the LOQ specified in Sec. 766.27, Sec. 766.35(c) requires the 
following additional reporting on the specified chemicals: production, 
process, use, exposure and disposal data under section 8(a) of TSCA; 
health and safety studies under section 8(d) of TSCA; and reports of 
allegations of significant adverse reactions under section 8(c) of TSCA. 
In some cases, additional reporting may be required of manufacturers 
reporting no contamination of the identified chemical substances under 
Sec. 766.35(c)(2).
    (h) Section 766.38 requires manufacturers of chemical substances 
produced from chemical substances identified as possible precursors to 
HDD/HDF formation, to report on chemical substances produced from such 
precursors.

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