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EPA/OCSPP RIN: 2070-AJ31 Publication ID: Fall 2010 
Title: Significant New Use Rule for Chloranil 
Abstract: Chloranil is used as a basic feedstock for certain dyes and pigments and in the production of rubber tires. Chloranil was one of the chemicals identified for testing in the Dioxin/Furan (D/F) test rule. Early testing results revealed that dioxin levels in Chloranil could vary by more than two orders of magnitude depending on the chemical manufacturing process involved. It appeared that the “low dioxin” manufacturing process could produce Chloranil with dioxin contamination levels below 20 ppb TEQ. Based on this information, EPA entered into a formal agreement with Chloranil importers (there was no domestic production of “high dioxin” Chloranil) to only import Chloranil made through the “low dioxin” process. As a follow up to this agreement, a Chloranil Significant New Use Rule (SNUR) was proposed in 1993. Under the provisions of the draft SNUR any Chloranil imported or domestically produced with dioxin contamination levels greater than 20 ppb TEQ would be considered a new use and require reporting under section 5(a)(1)(A) of the Toxic Substances Control Act. In the SNUR proposal EPA stated that it would not promulgate a final rule until it had all of the D/F test rule data. EPA accepted the final test rule data in June of 2001. The test rule requirements continue to apply to any new manufacturer or importer of Chloranil. No new importer or manufacturer has identified themselves, although EPA has received inquiries from time to time about the applicability of the test rule to new imports. EPA therefore believes that all importation of Chloranil is still covered under the formal agreements and that there is no current import or domestic manufacture of high dioxin Chloranil. Because a significant time has passed since proposal, the Agency reopened the comment period in 2007. EPA is currently formulating the final rule. 
Agency: Environmental Protection Agency(EPA)  Priority: Substantive, Nonsignificant 
RIN Status: Previously published in the Unified Agenda Agenda Stage of Rulemaking: Long-Term Actions 
Major: No  Unfunded Mandates: No 
CFR Citation: 40 CFR 721   
Legal Authority: 15 USC 2607 TSCA 8   
Legal Deadline:  None
Timetable:
Action Date FR Cite
NPRM Original  05/12/1993  58 FR 27986   
Reopening of Comment Period  01/30/2007  72 FR 4224   
Final Action  To Be Determined    
Additional Information: Split from RIN 2070-AA58; EPA Docket information: EPA–HQ–OPPT–2006–0795
Regulatory Flexibility Analysis Required: No  Government Levels Affected: None 
Small Entities Affected: Businesses  Federalism: No 
Included in the Regulatory Plan: No 
Sectors Affected: 32411 Petroleum Refineries; 325 Chemical Manufacturing; 32513 Dye and Pigment Manufacturing; 32621 Tire Manufacturing 
RIN Data Printed in the FR: No 
Agency Contact:
Brian Symmes
Environmental Protection Agency
Office of Chemical Safety and Pollution Prevention
7404T,
Washington, DC 20460
Phone:202 566-1983
Fax:202 566-0470
Email: symmes.brian@epa.gov