Emails and letters are effective ways to communicate with elected and other government officials. Here are some tips on proper format and effective content for a letter urging an action or expressing an opinion to a member of Congress or a member of the state legislature.
The American Library Association gives the following advice on writing to your legislator:
When mailing a physical letter, use your official letterhead, if possible. If this is not appropriate, and you write as an individual, use plain white bond paper, and give your official title following your signature as a means of identification and to indicate your competency to speak on the subject.
"Sincerely yours" is in good taste as a complimentary close. Remember to sign your given name and surname. If you use a title in your signature, be sure to enclose it in parentheses.
The American Psychological Association (APA) offers nine tips for writing to elected officials, whether by postal mail or email: https://www.apa.org/advocacy/guide/letter-email
Here are some tips from the University of California Berkeley Library on contacting and communicating with your elected official through letters or e-mail:
Dear Mr. President:
Dear Mr. Vice President:
To The Honorable Senator [Name]:
To The Honorable Representative [Name]: