SMS Marketing Laws by State

The U.S. A2P Authority Index provides plain-language, source-linked fact sheets for every state and the national authority layers that shape U.S. business messaging programs.

Some state sources expressly cover SMS or MMS. Others regulate related telemarketing, privacy, consent, or do-not-call activity without clearly extending every rule to texts. Each page keeps that distinction visible.

110reviewed authority records

51state and D.C. fact sheets

9national authority layers

Start with your program details

The SMS Compliance Preflight narrows this index to the authority layers that may matter for a particular program.

Run the SMS Compliance Preflight

SMS marketing law and authority fact sheets by state

Choose a jurisdiction to review text-specific authorities, related state rules, source limitations, and coverage questions that remain unresolved.

National A2P authority layers

State law is only one part of the authority stack. These pages explain the federal, carrier, registration, industry, and channel layers that may apply across jurisdictions.

Federal Messaging Law and Regulation The federal statutes and regulations that form the national legal baseline for U.S. A2P text messaging. FCC Rules, Orders, and Robotext Controls FCC actions addressing consent revocation, opt-out handling, robotext blocking, and related operational controls. Federal Court Decisions Affecting A2P Messaging Federal decisions that affect how TCPA provisions, autodialer rules, consent theories, and private-action rights are interpreted. National Do Not Call Requirements The national registry and federal do-not-call framework relevant to covered U.S. telemarketing programs. Industry-Specific Federal Requirements Federal privacy, health, financial, debt-collection, child-data, credit-reporting, and affiliate-marketing requirements that may apply to particular messaging programs. U.S. Carrier Messaging Policy Carrier policies and public guidance concerning approved messaging paths, consent evidence, opt-out handling, filtering, and sender behavior. Sender Registration and Verification 10DLC, short-code, toll-free, vetting, and monitoring requirements used to register or verify U.S. A2P senders. Messaging Industry Guidance and Technical Standards Industry guidance and technical specifications that supplement—but do not replace—law, carrier policy, registry rules, or platform requirements. Channel and Platform Policies Channel-owner policies and implementation requirements for RCS, WhatsApp, Apple Messages for Business, and Meta business messaging.