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Federal regulations · Through 2026-08-25 · Newer source version available

40 CFR 721.4140: Hexachloronorbornadiene.

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Where this section sits in the code
  1. Title 40—Protection of Environment
  2. CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY
  3. SUBCHAPTER R—TOXIC SUBSTANCES CONTROL ACT
  4. PART 721—SIGNIFICANT NEW USES OF CHEMICAL SUBSTANCES
  5. Subpart E—Significant New Uses for Specific Chemical Substances

(a) Chemical substance and significant new uses subject to reporting. (1) The chemical substance 1,2,3,4,7,7-hexachloronorbornadiene, CAS Number 3389-71-7, is subject to reporting under this section for the significant new use described in paragraph (a)(2) of this section.

(2) The significant new use is: Use other than as an intermediate in the production of isodrin or endrin.

(b) Specific requirements. The provisions of subpart A of this part apply to this section except as modified by this paragraph.

(1) Definitions. In addition to the definitions in § 721.3, the following definitions apply:

(i) “Endrin” means the pesticide 2,7:3,6-Dimethanonaphth[2,3-b]oxirene, 3,4,5,6,9,9-hexachloro-1a,2,2a,3,6,6a,7,7a-octahydro-, (1a alpha, 2beta,2abeta,3alpha,6alpha,6abeta, 7beta,7aalpha)-, CAS Number 72-20-8.

(ii) “Isodrin” means the pesticide 1,4:5,8-Dimethano-naphthalene,1,2,3,4,10,10-hexachloro-1,4,4a,5,8,8a-hexahydro-, (1alpha, 4alpha, 4abeta, 5beta, 8beta, 8abeta)-, CAS Number 465-73-6.

(2) [Reserved]

Collected 2026-08-27T02:26:04Z. Source file · JSON

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