The filing date for the 2011 fourth quarter Mass Mailing report is Wednesday, January 25, 2012. If your office did no mass mailings during this period, please submit a form that states ``none.'' Mass mailing registrations, or negative reports, should be submitted to the Senate Office of Public Records, 232 Hart Building, Washington, DC 20510-7116. The Senate Office of Public Records will be open from 9 a.m. to 6 p.m. on the filing date to accept these filings. For further information, please contact the Senate Office of Public Records at (202) 224-0322.