40 CFR Part 63, Subpart XX, Table 1 to Subpart XX of Part 63 - Hazardous Air Pollutants

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There are 5 Updates appearing in the Federal Register for 40 CFR 63. View below or at eCFR (GPOAccess)
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View PDF at GPO Pt. 63, Subpt. XX, Table 1
Table 1 to Subpart XX of Part 63—Hazardous Air Pollutants
Hazardous air pollutant CAS No.
Benzene 71432
1,3-Butadiene 106990
Cumene 98828
Ethyl benzene 100414
Hexane 110543
Naphthalene 91203
Styrene 100425
Toluene 108883
o-Xylene 95476
m-Xylene 108383
p-Xylene 106423

Title 40 published on 2013-07-01

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.

  • 2014-02-27; vol. 79 # 39 - Thursday, February 27, 2014
    1. 79 FR 11228 - Revisions to Test Methods and Testing Regulations
      GPO FDSys XML | Text
      ENVIRONMENTAL PROTECTION AGENCY
      Final rule.
      This final rule is effective on February 27, 2014. The incorporation by reference materials listed in the rule are approved by the Director of the Federal Register as of February 27, 2014.
      40 CFR Parts 51, 60, 61, and 63

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United States Code

Title 40 published on 2013-07-01

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

  • 2014-02-27; vol. 79 # 39 - Thursday, February 27, 2014
    1. 79 FR 11228 - Revisions to Test Methods and Testing Regulations
      GPO FDSys XML | Text
      ENVIRONMENTAL PROTECTION AGENCY
      Final rule.
      This final rule is effective on February 27, 2014. The incorporation by reference materials listed in the rule are approved by the Director of the Federal Register as of February 27, 2014.
      40 CFR Parts 51, 60, 61, and 63