A 1991 statute that polices automated dialers, prerecorded voice and unsolicited fax advertisements, and arms private plaintiffs and state attorneys general with statutory damages, all enforced under federal law that states are free to exceed.
The TCPA does not regulate "calls" as a monolith. It sorts each recipient line into a tier of protection, and the tier governs whether automated equipment, prerecorded voice, or telemarketing can reach it at all. Tap any tier to inspect.
Section 227(b)(1) sets out four prohibitions that operate by channel and method. Cross any of them without statutory consent or an emergency justification, and the call, text, or fax is unlawful regardless of the caller's intent.
No automatic telephone dialing system or artificial or prerecorded voice may be directed to any 911 line, hospital, physician or service office, health care facility, poison control center, or fire-protection or law-enforcement agency.
No ATDS or prerecorded voice may reach the telephone line of a guest room or patient room of a hospital, health care facility, elderly home, or similar establishment.
No ATDS or prerecorded voice may reach a number assigned to cellular service, paging, specialized mobile radio, or any service for which the called party is charged. Texts to mobile numbers fall here. Prior express consent of the called party is the principal exception.
It is unlawful to initiate any telephone call to a residential line using an artificial or prerecorded voice to deliver a message without the prior express consent of the called party, unless the call is for emergency purposes or is exempt by Commission rule.
No telephone facsimile machine, computer, or other device may transmit an unsolicited advertisement to a fax machine, save for the narrow established-business-relationship pathway with mandatory opt-out notice in subsection (b)(2)(D).
No automatic telephone dialing system may be used in a way that engages two or more telephone lines of a multi-line business at the same time. The provision protects business continuity, not consumer privacy.
The Commission's rules prohibit any person from making or transmitting a telephone solicitation to a number on the National Do-Not-Call Registry. This is the parallel regime of § 227(c), enforced through both FCC rules and the private right of action at § 227(c)(5).
It is unlawful to initiate a fax message or ATDS call that fails to comply with technical standards, including the requirement that prerecorded messages identify the calling business at the start and provide a callback number, and that fax pages bear sender identification and timestamp.
Almost every TCPA dispute turns on definition. Whether a system is an "automatic telephone dialing system", whether a fax is an "unsolicited advertisement", whether a relationship qualifies as "established", these are the load-bearing words. Tap any term to read the operative text and where it bites.
No other provision of § 227 carries this much detail on its face. Faxes are prohibited by default; an established business relationship plus a voluntary or public-directory number lets you send, but only if the fax carries a notice of opt-out rights that meets four cumulative requirements. Miss any one, and every page is a violation.
§ 227(b)(1)(C): Sending an unsolicited advertisement to a fax machine is unlawful unless three conditions are all satisfied: an established business relationship with the recipient, the number was obtained voluntarily or from a public directory, and the fax bears a compliant opt-out notice.
The opt-out notice must, by § 227(b)(2)(D), be clear and conspicuous on the first page, state that failure to honor a stop request is unlawful, set out how to opt out, include a domestic phone and fax number plus a cost-free mechanism, and remain available 24/7. A single prior stop request from the recipient eliminates the EBR exception going forward.
Few federal statutes empower as many enforcers as the TCPA. Consumers can sue directly in state court for $500 per violation. State attorneys general can sue on behalf of residents in federal court. The FCC retains its own administrative enforcement powers. Each works on a separate statutory track.
The TCPA was passed in 1991 to address the rotary-dial era. The statute that arrived to confront robocalls and SMS in the 2020s is the same text, but reshaped by FCC rulemaking, the Junk Fax Prevention Act of 2005, and a Supreme Court decision that fundamentally altered what "automatic" means.
The TCPA prices each violation at a fixed dollar amount, no proof of harm required. Multiplied across a class of recipients, even modest call volumes produce headline-grade liability. The arithmetic is what gives the statute its enforcement gravity.
Walk the questions in order. The path you take maps each branch to the operative provision, the consent regime, and the exposure that attaches if the conduct proceeds. Not legal advice; a starting point.