Section 721.5350 - Butanenitrile, 2-amino-2,3-dimethyl-(a)Chemical substance and significant new uses subject to reporting.(1) The chemical substance identified as butanenitrile, 2-amino-2,3-dimethyl- (PMN P-83-603; CAS No. 13893-53-3) 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), (a)(4), (a)(5)(i), (a)(5)(ii), (a)(5) (iii), (a)(6)(v), (b) (concentration set at 1 percent), and (c).(ii)Hazard communication program. Requirements as specified in § 721.72 (a), (b)(1), (d), (e) (concentration set at 1 percent), (f), (g)(1)(iii), (g)(1)(vii), (g)(2)(i), (g)(2)(ii), (g)(2)(iii), (g)(2)(iv), (g)(2)(v), (g)(3)(ii), and (g)(4)(i). The provision of § 721.72(d) requiring that employees be provided with information on the location and availability of SDSs does not apply when an SDS was not required under § 721.72(c) . The provision of § 721.72(g) requiring placement of specific information on an SDS does not apply when an SDS is not required under § 721.72(c) .(iii)Industrial, commercial, and consumer activities. Requirements as specified in § 721.80(k) .(iv)Release to water. Requirements as specified in § 721.90 (a)(4), (b)(4), and (c)(4) (level set at 1 ppb).(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) through (g), (i), and (k) .(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 § 721.1725(b)(1) apply to this section.55 FR 33305, Aug. 15, 1990; 55 FR 52275, Dec. 21, 1990. Redesignated and amended at 58 FR 29946, 29947, May 24, 1993; 58 FR 34204, June 23, 1993; 79 FR 34638 , June 18, 2014