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EPA/OCSPP RIN: 2070-AJ73 Publication ID: Spring 2011 
Title: Significant New Use Rule (SNUR); Benzidine-Based Dyes; Di-n-pentyl phthalate (DnPP); and Alkanes, C12-13, Chloro 
Abstract: Under section 5(a)(2) of the Toxic Substances Control Act (TSCA), EPA intends to propose adding nine chemicals (dyes) to the benzidine-based chemical substances (dyes) Significant New Use Rule (SNUR) at 40 CFR section 721.1660; to create a SNUR for Di-n-pentyl phthalate (DnPP) (1,2-Benzenedicarboxylic acid, 1,2-dipentyl ester ) CASRN number 131-18-0; and to create a SNUR for Alkanes, C12-13, chloro (CASRN: 71011-12-6). The proposed SNURs would require persons who intend to manufacture, import, or process these chemical substances for an activity that is designated as a significant new use by this proposed rule to notify EPA at least 90 days before commencing that activity. In the case of the benzidine-based dyes, the proposed rule would also require persons who intend to import or process the chemicals as part of an article to notify EPA at least 90 days before commencing that activity. The required notification would provide EPA with the opportunity to evaluate the intended use and, if necessary, to prohibit or limit that activity before it occurs. For benzidine-based chemical substances (dyes) this amendment does not revoke the exemptions granted at 40 CFR section 721.1660(a)(2) for uses as laboratory stains and other analytical reagents. However, this amendment does propose to revoke the Article Exemption described in 40 CFR section 721.45(f) for the chemicals previously listed in 40 CFR section 721.1660(a)(2) as well as for the nine benzidine-based dyes included in this proposed SNUR. 
Agency: Environmental Protection Agency(EPA)  Priority: Other Significant 
RIN Status: Previously published in the Unified Agenda Agenda Stage of Rulemaking: Proposed Rule Stage 
Major: No  Unfunded Mandates: No 
CFR Citation: 40 CFR 721   
Legal Authority: 15 USC 2601 et seq   
Legal Deadline:  None
Timetable:
Action Date FR Cite
NPRM  10/00/2011    
Additional Information: This action has been merged with 2070-AJ78 and 2070-AJ81.
Regulatory Flexibility Analysis Required: No  Government Levels Affected: None 
Small Entities Affected: No  Federalism: No 
Included in the Regulatory Plan: No 
RIN Information URL: http://www.epa.gov/oppt/newchems/pubs/snun.htm  
Sectors Affected: 325 Chemical Manufacturing 
RIN Data Printed in the FR: No 
Agency Contact:
Sara Kemme
Environmental Protection Agency
Office of Chemical Safety and Pollution Prevention
1200 Pennsylvania Avenue NW, Mail Code 7602M,
Washington, DC 20460
Phone:202 566-1217
Email: kemme.sara@epa.gov

Robert Courtnage
Environmental Protection Agency
Office of Chemical Safety and Pollution Prevention
1200 Pennsylvania Avenue NW, Mail Code 7404T,
Washington, DC 20460
Phone:202 566-1081
Email: courtnage.robert@epa.gov