40 CFR § 721.10579 - Carbon black derived from the pyrolysis of rubber tire shreds (generic).

---
identifier: "/us/cfr/t40/s721.10579"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "40 CFR § 721.10579 - Carbon black derived from the pyrolysis of rubber tire shreds (generic)."
title_number: 40
title_name: "Protection of Environment"
section_number: "721.10579"
section_name: "Carbon black derived from the pyrolysis of rubber tire shreds (generic)."
chapter_name: "ENVIRONMENTAL PROTECTION AGENCY"
subchapter_number: "R"
subchapter_name: "TOXIC SUBSTANCES CONTROL ACT"
part_number: "721"
part_name: "SIGNIFICANT NEW USES OF CHEMICAL SUBSTANCES"
positive_law: false
currency: "2026-03-24"
last_updated: "2026-03-24"
format_version: "1.1.0"
generator: "[email protected]"
authority: "15 U.S.C. 2604, 2607, and 2625(c)."
regulatory_source: "49 FR 35018, Sept. 5, 1984, unless otherwise noted."
cfr_part: "721"
---


# 721.10579 Carbon black derived from the pyrolysis of rubber tire shreds (generic).

(a) *Chemical substance and significant new uses subject to reporting.* (1) The chemical substance identified generically as carbon black derived from the pyrolysis of rubber tire shreds (PMN P-10-367) is subject to reporting under this section for the significant new uses described in paragraph (a)(2) of this section.

(2) The significant new uses are:

(i) *Industrial, commercial, and consumer activities.* Requirements as specified in § 721.80 (k)(Manufacture of the PMN substance using only the process described in PMN; manufacturing, processing, or use of the PMN substance in compliance with the Occupational Safety and Health Administration (OSHA) Permissible Exposure Limit (PEL) for carbon black of 3.5 mg/m
<sup>3</sup>; and manufacture of the PMN substance to meet the NIOSH recommended time weighted average (TWA) for polyaromatic hydrocarbons (PAH) in carbon black of 0.1 mg/m
<sup>3</sup>); and (q).

(ii) *Release to water.* Requirements as specified in § 721.90 (a)(1), (b)(1), and (c)(1).

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

(1) *Recordkeeping.* Recordkeeping requirements as specified in § 721.125 (a), (b), (c), (i), and (k) are applicable to manufacturers, importers, and processors of this substance.

(2) *Limitations or revocation of certain notification requirements.* The provisions of § 721.185 apply to this section.

(3) *Determining whether a specific use is subject to this section.* The provisions of § 721.1725(b)(1) apply to (a)(2)(i) of this section.

[77 FR 61148, Oct. 5, 2012]