Dear Colleague letter

A “Dear Colleague letter” is an official communication distributed in bulk by a lawmaker to all members of Congress.

Dear Colleague letters typically include issues related to co-sponsoring or opposing a bill, new procedures or upcoming congressional events.

Although Dear Colleague letters have been used by members for over a century, technological advances in recent years have facilitated their distribution. In 2008, the House introduced a web based e-“Dear Colleague” system, streamlining topic headings and distribution lists.