40 CFR § 721.11001 - 1-Butanaminium, N,N,N-tributyl-, ethyl carbonate (1:1).

---
identifier: "/us/cfr/t40/s721.11001"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "40 CFR § 721.11001 - 1-Butanaminium, N,N,N-tributyl-, ethyl carbonate (1:1)."
title_number: 40
title_name: "Protection of Environment"
section_number: "721.11001"
section_name: "1-Butanaminium, N,N,N-tributyl-, ethyl carbonate (1:1)."
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"
---


# 721.11001 1-Butanaminium, N,N,N-tributyl-, ethyl carbonate (1:1).

(a) *Chemical substance and significant new uses subject to reporting.* (1) The chemical substance identified as 1-butanaminium, N,N,N-tributyl-, ethyl carbonate (1:1) (PMN P-16-257; CAS No. 478796-04-2) 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 (3) and (b) (concentration set at 1.0 percent).

(ii) *Hazard communication.* Requirements as specified in § 721.72(a) through (e) (concentration set at 1.0 percent), (f), (g)(1)(i) and (ii), (g)(2)(i), (ii), (iii), and (v), (g)(3)(i) and (ii), and (g)(5) and Notice to users: Minimize release to water. Alternative hazard and warning statements that meet the criteria of the Globally Harmonized System (GHS) and OSHA Hazard Communication Standard may be used.

(iii) *Industrial, commercial, and consumer activities.* Requirements as specified in § 721.80(p)(64,000 kilograms aggregate of P-16-255, P-16-256, P-16-257, P-16-258, and P-16-259). It is a significant new use to manufacture, process, or use the substance other than as a blocked catalyst for paints and coatings. It is a significant new use to spray apply the PMN substance where the concentration of any combination of P-16-255, P-16-256, P-16-257, P-16-258, and P-16-259 in the final paint/coating formulation exceeds 1.5% by weight.

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

(1) *Recordkeeping.* Recordkeeping requirements as specified in § 721.125(a) through (i) are applicable to manufacturers and processors of this substance.

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

[82 FR 48649, Oct. 19, 2017]