What Does TCPA Stand For? The Telephone Consumer Protection Act of 1991 (TCPA) is a federal law concerning telephone solicitations. A telephone solicitation is defined as the initiation of a telephone call for the purpose of encouraging the purchase or, or investment in, property, goods, or services. The TCPA established a National Do-Not-Call Registry for consumers who wish to avoid telemarketing calls. Consumers at no charge may request to be on the list. Telemarketers must first search the national registry before making telemarketing calls. Calls are restricted to the hours of 8:00 am to 9:00 pm.