Why do I receive HSUS mailings addressed from Washington, DC and Phoenix, Arizona?
As the largest animal protection organization in the country, The HSUS receives a large volume of mail. To best coordinate the timely receipt and processing of all correspondence, The HSUS utilizes two mail houses, one in Washington, DC and one in Phoenix, Arizona. When responding to an HSUS mailing, we encourage you to use the provided postage-paid envelopes. This will ensure that your donations and letters are processed in a timely manner.
