---
kind: "section"
citation: "40 C.F.R. § 721.4520"
title: "40"
number: "721.4520"
heading: "Isopropylidene, bis(1,1-dimethylpropyl) derivative."
url: "https://uscodex.org/cfr/40/721.4520"
---

# §721.4520. Isopropylidene, bis(1,1-dimethylpropyl) derivative.

- (a) **Chemical substance and significant new uses subject to reporting.**
  - (1) The chemical substance identified as isopropylidene, bis(1,1-dimethylpropyl) derivative (PMN P-85-648) 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)(2)(i)](/cfr/40/721.63.md?p=a-2-i), [(a)(2)(ii)](/cfr/40/721.63.md?p=a-2-ii), [(a)(2)(iii)](/cfr/40/721.63.md?p=a-2-iii), [(a)(3)](/cfr/40/721.63.md?p=a-a-3) (applies to gloves only), (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)(2)](/cfr/40/721.72.md?p=b-2), [(c)](/cfr/40/721.72.md?p=b-c), [(d)](/cfr/40/721.72.md?p=b-d), [(e)](/cfr/40/721.72.md?p=b-e) (concentration set at 0.1 percent), (f), (g)(1)(vii), (g)(2)(i), (g)(2)(v), and (g)(5).
    - (iii) **Industrial, commercial, and consumer activities.** Requirements as specified in [§ 721.80(k)](/cfr/40/721.80.md?p=k).
    - (iv) **Release to water.** Requirements as specified in § [721.90 (a)(2)(ii)](/cfr/40/721.90.md?p=a-2-ii), [(b)(2)(ii)](/cfr/40/721.90.md?p=b-2-ii), and [(c)(2)(ii)](/cfr/40/721.90.md?p=c-2-ii).
- (b) **Specific requirements.** The provisions of subpart A of this part apply to this section except as modified by this paragraph.
  - (1) **Recordkeeping requirements.** Requirements as specified in § [721.125 (a) through (i)](/cfr/40/721.125.md?p=a..i), and [(k)](/cfr/40/721.125.md?p=k) are applicable to manufacturers, importers, and processors of this substance.
  - (2) **Limitations or revocation of certain notification requirements.** The provisions of [§ 721.185](/cfr/40/721.185.md) apply to this section.
  - (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

[57 FR 44067, Sept. 23, 1992, as 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

[57 FR 44067, Sept. 23, 1992, as amended at 58 FR 29946, May 24, 1993; 58 FR 34204, June 23, 1993]