40 CFR Part 63, Subpart TTTTT, Table 2 to Subpart TTTTT of Part 63 - Toxic Equivalency Factors

Status message

There are 7 Updates appearing in the Federal Register for 40 CFR 63. View below or at eCFR (GPOAccess)
View PDF at GPO Pt. 63, Subpt. TTTTT, Table 2
Table 2 to Subpart TTTTT of Part 63—Toxic Equivalency Factors
Dioxin/furan congener Toxic equivalency factor
2,3,7,8-tetrachlorinated dibenzo-p-dioxin 1
1,2,3,7,8-pentachlorinated dibenzo-p-dioxin 1
1,2,3,4,7,8-hexachlorinated dibenzo-p-dioxin 0.1
1,2,3,7,8,9-hexachlorinated dibenzo-p-dioxin 0.1
1,2,3,6,7,8-hexachlorinated dibenzo-p-dioxin 0.1
1,2,3,4,6,7,8-heptachlorinated dibenzo-p-dioxin 0.01
octachlorinated dibenzo-p-dioxin 0.0001
2,3,7,8-tetrachlorinated dibenzofuran 0.1
2,3,4,7,8-pentachlorinated dibenzofuran 0.5
1,2,3,7,8-pentachlorinated dibenzofuran 0.05
1,2,3,4,7,8-hexachlorinated dibenzofuran 0.1
1,2,3,6,7,8-hexachlorinated dibenzofuran 0.1
1,2,3,7,8,9-hexachlorinated dibenzofuran 0.1
2,3,4,6,7,8-hexachlorinated dibenzofuran 0.1
1,2,3,4,6,7,8-heptachlorinated dibenzofuran 0.01
1,2,3,4,7,8,9-heptachlorinated dibenzofuran 0.01
octachlorinated dibenzofuran 0.0001

Title 40 published on 2014-07-01

The following are only the Rules published in the Federal Register after the published date of Title 40.

For a complete list of all Rules, Proposed Rules, and Notices view the Rulemaking tab.

  • 2014-11-25; vol. 79 # 227 - Tuesday, November 25, 2014
    1. 79 FR 70102 - National Emission Standards for Hazardous Air Pollutants; Delegation of Authority to Texas
      GPO FDSys XML | Text
      Direct final rule; delegation of authority.
      This rule is effective on January 26, 2015 without further notice, unless EPA receives relevant adverse comment by December 26, 2014. If EPA receives such comment, EPA will publish a timely withdrawal in the Federal Register informing the public that this rule will not take effect.
      40 CFR Part 63

This is a list of United States Code sections, Statutes at Large, Public Laws, and Presidential Documents, which provide rulemaking authority for this CFR Part.

This list is taken from the Parallel Table of Authorities and Rules provided by GPO [Government Printing Office].

It is not guaranteed to be accurate or up-to-date, though we do refresh the database weekly. More limitations on accuracy are described at the GPO site.

United States Code

Title 40 published on 2014-07-01

The following are ALL rules, proposed rules, and notices (chronologically) published in the Federal Register relating to 40 CFR 63 after this date.

  • 2015-01-15; vol. 80 # 10 - Thursday, January 15, 2015
    1. 80 FR 2067 - National Emission Standards for Hazardous Air Pollutants: Secondary Aluminum Production; Extension of Comment Period
      GPO FDSys XML | Text
      Supplemental notice of proposed rulemaking; extension of public comment period.
      Comments. The public comment period for the supplemental proposed rule published in the Federal Register on December 8, 2014 (79 FR 72874), is being extended for 15 days to February 6, 2015, in order to provide the public additional time to submit comments and supporting information.
      40 CFR Part 63