Washington's Address Confidentiality Program (ACP) provides a substitute address for eligible participants who need to keep their residential address confidential. The program is available to qualifying survivors of domestic violence, sexual assault, stalking, or trafficking, as well as certain Criminal Justice Affiliates, Election Officials, and Protected Health Care Workers who are targets of threats or harassment.

ACP participants can use their substitute address with Washington state and local government agencies, and the program provides specific protections related to voter registration and voting records.