**MEMORANDUM**

**SUBJECT:** Posting EPA - HQ - EPA - HQ - OPPT - 2012 - 0725 to Regulations.gov for

Public Access **FROM:** Christina Thompson

Chemical Control Division, OCSPP **Thru:** Leslie Cronkhite

Chemical Control Division, OCSPP Th is memo randum authorizes the posting of EPA - HQ - OPPT - 2012 - 0725 to Regulations.gov for public access . EPA announced the extension of the public comment period until May 1 , 2013, for its methylene c hloride (CASRN 75 - 09 - 2 ) and n - m ethylpy rrolidone ( CASRN 872 - 50 - 4 ) draft chemical risk assessments . Methylene chloride and n - methylpy rrolidone are included in a single docket because both assessments will be addressed b y the same peer review panel. Public comments submitted on these draft risk assessments will be included in materials subm itted to peer review panels for their reviews of the assessments after this public comment period closes. Methylene c hloride and n - m ethylpy rrolidone are two of seven Work Plan chemicals that EPA identified on March 1, 2012 , for assessment during 2012. Th e other chemicals are trichloroeth yl ene , antimony trioxide , 1,3,4,6,7,8 - Hexahy dro - 4,6,6,7,8,8, - hexamethylcy clopenta[g] - 2 - benzopy ran , medium - chain chlorinated paraffins , and long chain chlorinated paraffins . For further information on methylene c hloride , n m ethylpy rrolidone , and other Work Plan chemicals, visit EPA’s TSCA Work Plan Chemicals webpage at http://www.epa.gov/oppt/existingchemicals/pubs/workplans.html . This document w ill remain open for public comment thru 05/01 /2013 . Submit your comments, identified by Docket ID No. EPA - HQ - OPPT - 2012 - 072 5 , by one of the following methods : • www.regulations.gov : Follow the on - line instruction s for submitting comments. Do not submit electronically an y information you consider to be Confidential Business Information (CBI) or other information whose disclosure is restricted b y statute. • Email: oppt.ncic@epa.gov • Fax: (202) - 566 - 9744 • Mail: Environmental Protection Agency , Mailcode 28221T , 1200 Pennsy lvaniaAve , NW , Washington, DC 20460 .

• H and Delivery : OPPT Document Control Office (DCO), EPA East Bldg., Rm. 6428, 1201 Constitution Ave., NW., Washington, DC . Such deliveries are only a ccepted during the Docket’s normal hours of operation, and special arrangements should be made for deliveries of boxed information. EPA’s policy

is that all comments received will be included in the public docket without change and may

be made available o nline at http://www.regulations.gov , including an y personal information provided, unless the comment includes information claimed to be Confidential Business Information (CBI) or other information whose disclosur e is restricted b y statute. Do not submit information that y ou consider to be CBI or otherwise protected through http://www.regulations.gov or e - mail. The http://www.regulations.gov Web site is an ‘‘anon ym ous access’’ s ys tem, which means EPA will not know y our identity or contact information unless y ou provide it in the body of your comment. I f you send an e - mail comment directly to EPA without going through http://www.regulations.gov, your e - mail address will be automatically captured and included as part of the comment that is placed in the public docket and made available on the Internet. If y ou submit an electronic comment, EPA recommends that you include yo ur name and other contact information in the body of your comment and with any disk or CD

–ROM y ou submit. If EPA cannot read your comment due to technical difficulties and cannot contact you for clarification, EPA may not be able to consider y our comment. Electronic files should avoid the use of special characters, avoid an y form of encryption, and be free of an y defects or viruses. For additional information about EPA’s public docket, visit the EPA Docket Center homepage at http://www.epa.gov/epahome/dockets.htm . Should you have any

questions regarding this memorandum, please contact Eric Shultz at ( 202 ) 566 - 1883 , or via email at schultz.eric@epa.gov . If you have subject matter questions related to these chemicals, then contact Stan Barone at (202) - 564 - 1169 , or via email at barone.stan@epa.gov .