An authorized service provider (ASP) is an individual or an organization that is permitted to service products that are covered by warranties held by another entity. Service conducted by anyone other than an authorized service provider will generally render a warranty void.
Most large IT vendors, including Apple, HP and Microsoft, offer authorized service provider programs. To qualify as an ASP, applicants must pass a certification test and may also have to sign an ASP agreement. Apple's ASP program, for example, stipulates that a service provider must have been in business for a certain period of time, must maintain walk-in premises in a suitable location, and must meet operational standards.