---
kind: "section"
citation: "40 C.F.R. § 721.4100"
title: "40"
number: "721.4100"
heading: "Tris(disubstituted alkyl) heterocycle."
url: "https://uscodex.org/cfr/40/721.4100"
---

# §721.4100. Tris(disubstituted alkyl) heterocycle.

- (a) **Chemical substance and significant new uses subject to reporting.**
  - (1) The chemical substance identified generically as tris(disubstituted alkyl) heterocycle (P-90-142) is subject to reporting under this section for the significant new uses described in [paragraph (a)(2)](#a-2) of this section.
  - (2) **The significant new uses are—**
    - (i) **Protection in the workplace.** Requirements as specified in § [721.63 (a)(4)](/cfr/40/721.63.md?p=a-4), [(a)(5)(iv)](/cfr/40/721.63.md?p=a-5-iv), [(a)(6)(i)](/cfr/40/721.63.md?p=a-6-i), [(b)](/cfr/40/721.63.md?p=a-6-b) (concentration set at 0.1 percent) and (c).
    - (ii) **Hazard communication program.** Requirements as specified in § [721.72 (a)](/cfr/40/721.72.md?p=a), [(b)](/cfr/40/721.72.md?p=b), [(c)](/cfr/40/721.72.md?p=c), [(d)](/cfr/40/721.72.md?p=d), [(e)](/cfr/40/721.72.md?p=e) (concentration set at 0.1 percent), (f), (g)(1)(iv), (g)(1)(vi), (g)(1)(vii), (g)(2)(iv), (g)(5). The hazard communication requirements do not apply when the chemical substance is present in a plastic, an elastomer, a rubber matrix, or in a solution.
    - (iii) **Industrial, commercial, and consumer activities.** Requirements as specified in [§ 721.80(q)](/cfr/40/721.80.md?p=q). Any amount of the PMN substance imported in a plastic, an elastomer, a rubber matrix, or in a solution, such that inhalation is precluded, shall not be included in the production limit calculations.
- (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, as specified in § [721.125 (a)](/cfr/40/721.125.md?p=a), [(b)](/cfr/40/721.125.md?p=b), [(c)](/cfr/40/721.125.md?p=c), [(d)](/cfr/40/721.125.md?p=d), [(f)](/cfr/40/721.125.md?p=f), [(g)](/cfr/40/721.125.md?p=g), [(h)](/cfr/40/721.125.md?p=h), and [(i)](/cfr/40/721.125.md?p=i).
  - (2) **Limitations or revocation of certain notification requirements.** The provisions of [§ 721.185](/cfr/40/721.185.md) apply to this significant new use rule.
  - (3) **Determining whether a specific use is subject to this section.** The provisions of [§ 721.1725(b)(1)](/cfr/40/721.1725.md?p=b-1) apply to this section.

## Notes

### Amendments

[56 FR 40212, Aug. 13, 1991. Redesignated and amended at 58 FR 29946, May 24, 1993; 58 FR 34204, June 23, 1993]

### Authority

Authority: 15 U.S.C. 2604, 2607, and 2625(c).

### Source

Source: 49 FR 35018, Sept. 5, 1984, unless otherwise noted.

### Amendments

[56 FR 40212, Aug. 13, 1991. Redesignated and amended at 58 FR 29946, May 24, 1993; 58 FR 34204, June 23, 1993]