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

This memorandum 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 chloride (CASRN 75-09-2) and n-methylpyrrolidone (CASRN 872-50-4) draft 

chemical risk assessments. Methylene chloride and n-methylpyrrolidone are included in 

a single docket because both assessments will be addressed by the same peer review 

panel. Public comments submitted on these draft risk assessments will be included in 

materials submitted to peer review panels for their reviews of the assessments after this 

public comment period closes.

Methylene chloride and n-methylpyrrolidone are two of seven Work Plan chemicals that 

EPA identified on March 1, 2012, for assessment during 2012. The other chemicals are 

trichloroethylene, antimony trioxide, 1,3,4,6,7,8-Hexahydro-4,6,6,7,8,8,-

hexamethylcyclopenta[g]-2-benzopyran, medium-chain chlorinated paraffins, and longchain chlorinated paraffins. For further information on methylene chloride, nmethylpyrrolidone, 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 will remain open for public comment thru 05/01/2013.

Submit your comments, identified by Docket ID No. EPA-HQ- OPPT-2012-0725, by one 

of the following methods: 

• www.regulations.gov: Follow the on-line instructions for submitting comments.

Do not submit electronically any information you consider to be Confidential 

Business Information (CBI) or other information whose disclosure is restricted by 

statute.

 • Email: oppt.ncic@epa.gov

 • Fax: (202)-566-9744

• Mail: Environmental Protection Agency, Mailcode 28221T, 1200 Pennsylvania 
Ave, NW, Washington, DC 20460.

• Hand Delivery: OPPT Document Control Office (DCO), EPA East Bldg., Rm. 

6428, 1201 Constitution Ave., NW., Washington, DC. Such deliveries are only

accepted 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 online at http://www.regulations.gov, including any 

personal information provided, unless the comment includes information claimed to be 

Confidential Business Information (CBI) or other information whose disclosure is 

restricted by statute. Do not submit information that you consider to be CBI or otherwise 

protected through http://www.regulations.gov or e-mail. The http://www.regulations.gov

Web site is an ‘‘anonymous access’’ system, which means EPA will not know your 

identity or contact information unless you provide it in the body of your comment. If 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 you submit an electronic comment, EPA recommends that you include 

your name and other contact information in the body of your comment and with any disk 

or CD–ROM you submit. If EPA cannot read your comment due to technical difficulties 

and cannot contact you for clarification, EPA may not be able to consider your comment. 

Electronic files should avoid the use of special characters, avoid any form of encryption, 

and be free of any 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.