40 CFR § 721.3420 - Benzene, 1-bromo-4-methoxy-2-methyl-.

---
identifier: "/us/cfr/t40/s721.3420"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "40 CFR § 721.3420 - Benzene, 1-bromo-4-methoxy-2-methyl-."
title_number: 40
title_name: "Protection of Environment"
section_number: "721.3420"
section_name: "Benzene, 1-bromo-4-methoxy-2-methyl-."
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"
---


# 721.3420 Benzene, 1-bromo-4-methoxy-2-methyl-.

(a) *Chemical substance and significant new uses subject to reporting.* (1) The chemical substance identified as benzene, 1-bromo-4-methoxy-2-methyl- (PMN P-83-906; CAS No. 27060-75-9) 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) *Protection in the workplace.* Requirements as specified in § 721.63 (a)(1) and (a)(3).

(ii) *Hazard communication program.* Requirements as specified in § 721.72 (b)(1)(i)(D) and (g)(2)(v). The provision of § 721.72(g) requiring placement of specific information in an SDS does not apply when an SDS is not required under § 721.72(c).

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

(1) *Recordkeeping.* The following recordkeeping requirements are applicable to manufacturers, importers, and processors of this substance: § 721.125 (a), (b), (c), (d), (f), and (g).

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

[56 FR 25990, June 5, 1991. Redesignated at 58 FR 29946, May 24, 1993, as amended at 58 FR 34204, June 23, 1993; 79 FR 34637, June 18, 2014]