40 CFR § 721.9892 - 1,3-Dimethyl-2-imidazolidinone.

---
identifier: "/us/cfr/t40/s721.9892"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "40 CFR § 721.9892 - 1,3-Dimethyl-2-imidazolidinone."
title_number: 40
title_name: "Protection of Environment"
section_number: "721.9892"
section_name: "1,3-Dimethyl-2-imidazolidinone."
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: "2026-04-05"
last_updated: "2026-04-05"
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"
---


# 721.9892 1,3-Dimethyl-2-imidazolidinone.

(a) *Chemical substance and significant new uses subject to reporting.* (1) The chemical substance identified as 1,3-Dimethyl-2-imidazolidinone (PMN P-93-1649, SNUN S-04-3 and S-11-3; CAS No. 80-73-9) 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), (a)(3), (b) (concentration set at 1.0 percent), and (c).

(ii) *Hazard communication program.* Requirements as specified in § 721.72 (a), (b), (c), (d), (e) (concentration set at 1.0 percent), (f), (g)(1)(iii), (g)(1)(ix), (g)(2)(i), (g)(2)(iii), (g)(2)(v), and (g)(5).

(iii) *Industrial, commercial, and consumer activities.* Requirements as specified in § 721.80 (l) and (q).

(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) through (i) 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 § 721.575(b)(1) apply to this section.

[60 FR 45085, Aug. 30, 1995, as amended at 80 FR 37166, June 30, 2015]

At 80 FR 37166, June 30, 2015, § 721.9892 was amended in part by revising paragraph (a)(2)(i) however, no text was provided for (a)(2)(i). Text for paragraph (a)(2)(iii) was provided with no amendatory instruction.