Date

[Name of Staffer, if applicable] 
The Honorable [first name, last name] 
U.S. House of Representatives (or U.S. Senate) 
Washington, D.C. 20515 (or 20510)

Dear Representative (or Senator) [last name]:

Thank you for meeting with me [my colleagues and I] on [date and place]. I am pleased that we had the opportunity to discuss our position on [issue(s)].

[Briefly restate the issue(s) and what action(s) you want the member to take. Also provide any follow-up information you may have promised.]

Again, thank you for meeting with [me/us]. Please contact me at [your phone number] or [your e-mail address] if I can be of any assistance or if I can provide any additional information. I will continue to monitor [issue(s)] and will keep in touch with your office as developments occur.

Sincerely,

[your name and any credentials]