You can find the phone number in the U.S. government section of your telephone directory or by calling information. If you wish to call the Washington, D.C. office, you can reach your Senator or Representative through the Capitol switchboard. Your letters to Washington can make a difference. Legislators rely on letters to find out what the people back home are thinking. And, for you, letter-writing can be the first step in building an ongoing relationship with your legislators.
Personal letters are more effective than postcards or petitions.
Clearly state the topic you are writing about. Refer to bills by name or number if you can. Give reasons for your position. As appropriate, use personal experience or a concrete example to make your case. Keep it short.