This letter informs people how they can change their registered party affiliation.
1234, Main Street
Boston, MA 02123
05 April, 2005
<Recipient Address Goes Here>
Thank you for writing for information on how to change your registered party affiliation. Records currently show that you are registered as <party registration>. If you wish to change this affiliation prior to an upcoming election, you must fill out a new voter registration.
Simply go to your local Post Office and pick up a Voter Registration Form. Fill it out, making sure to check your desired party affiliation. When your completed form is received by the county Registrar, you will be registered under your new party.
Thank you for your inquiry, and good luck.
encl: <List of enclosed items goes here>