In the first eleven months of the 111th Congress, 276 Congressional Member Organizations — more familiarly known as “caucuses” — registered with the Committee on House Administration as the rules of the House require. A caucus focuses members of Congress on a subject, be it broad (the Water Caucus), narrow (the Congressional Caucus to Pass H.R. Res. 1) or even unrelated to lawmaking (the Congressional Pro-Sports Caucus for NFL fans). From December 2009 through March 2010, 20 more CMOs have followed formally registered, bringing the current count of caucuses in the House of Representatives to 296.

As part of a project to share information about the development of House caucuses over time, we have gathered the names of these 25 newly registered CMOs below, providing links to caucus websites and lists of members where they are available and noting when such information is not made available. Which caucuses publicly disclose their membership? Which caucuses cloak themselves in privacy?

The full list of caucus names, websites and membership for the House of Representatives in the 111th Congress can be found here.

NEW CONGRESSIONAL MEMBER ORGANIZATION REGISTRATIONS, December 2009-March 2010:

Congressional Apparel Manufacturing and Fashion Business Caucus: no website; no list of members

Congressional Brain Injury Task Force: website; list of members

Congressional Caucus for Women’s Issues: no primary website; secondary website maintained by Women’s Policy Inc; list of members

Congressional Caucus on Coal: no website; no list of members

Congressional Caucus on Drug Policy: no website; no list of members

Congressional Caucus on Homelessness: no website; no list of members

Congressional Caucus on Strategic Communications and Public Diplomacy: no website; no list of members

Congressional Caucus to Pass HJ RES 1: no website; no list of members

Congressional Friends of Panama Caucus: no website; no list of members

Congressional Hockey Caucus: no website; no list of members

Congressional Humvee Caucus: no website; no list of members

Congressional Invisible Wounds Caucus: no website; no list of members

Congressional Levee Caucus: no website; no list of members

Congressional Olympic and Paralympic Caucus: no website; no list of members

Congressional Pollinator Protection Caucus: no website; no list of members

Constitutional Caucus: no website; no list of members

Global Internet Freedom Caucus: no website; list of members

House Trade Working Group: no website; no list of members

Interstate 69 Congressional Caucus: no website; no list of members

Reclaim American Jobs Caucus: website; no list of members