United Way agency donor codes are used to determine whether an organization is eligible to receive donations through the United Way Campaign. Donors use them to identify the organization that should receive their donations. A list of codes is typically found on the websites for individual United Way locations.
Organizations are eligible to become a United Way agency and receive support if they have a Section 501(c)(3) designation from the Internal Revenue Service. They must also have a presence in a local area served by the United Way. Donors do not have to choose a specific agency code when sending a donation, but can send a undesignated gift instead.