Marketers Guide To SMS Compliance In The US

Text messaging offers one of the fastest ways to reach customers — with a reported 98% open rate and consumers spending nearly 4 hours per day on their mobile devices. But with great reach comes significant legal responsibility.

Understanding SMS compliance regulations protects both your audience and your business from unwanted messages and potential fines. This guide covers the key regulatory bodies, consent requirements, and best practices every US marketer needs to know.

Key Regulatory Bodies for SMS Compliance in the US

Four primary organizations establish and enforce SMS marketing regulations in the United States:

• CTIA (Cellular Telecommunications Industry Association) — Establishes industry standards and best practices for SMS marketing. CTIA guidelines are widely followed by carriers and messaging platforms.
• MMA (Mobile Marketing Association) — Advocates for ethical mobile marketing practices and provides educational resources for compliance.
• FCC (Federal Communications Commission) — The U.S. government's regulatory body overseeing media and communications, including rules under the Telephone Consumer Protection Act (TCPA).
• FTC (Federal Trade Commission) — Protects consumers from deceptive practices and enforces truth-in-advertising standards that apply to SMS marketing.

TCPA: The Foundation of US SMS Compliance

The Telephone Consumer Protection Act (TCPA) is the primary federal law governing SMS marketing. Key requirements include:

• Prior express written consent before sending marketing texts
• Clear opt-out instructions in every message
• Honoring opt-out requests promptly
• Identifying your business in every message
• Respecting quiet hours (messages should not be sent before 8am or after 9pm in the recipient's time zone)

Types of SMS Consent

Not all consent is equal under TCPA. There are three levels:

• Express written consent — Required for marketing messages. Must be a clear, affirmative action (e.g., checking a box or texting a keyword).
• Express oral consent — Sufficient for some informational messages but not for marketing.
• Implied consent — Exists when there is an established business relationship, but provides limited protection for marketers.

SMS Compliance Best Practices

• Always obtain explicit opt-in before texting customers
• Include your business name in every message
• Provide a simple opt-out mechanism (e.g., reply STOP)
• Keep records of consent
• Honor opt-outs within 10 business days (immediately is best practice)
• Do not send messages to numbers on the National Do Not Call Registry for marketing purposes
• Use compliant short codes or 10DLC registered numbers

10DLC Registration

10-digit long codes (10DLC) are now required for application-to-person (A2P) SMS messaging in the US. Carriers require businesses to register their brand and campaigns to send messages at scale. Unregistered traffic faces filtering and blocking by major carriers.

Penalties for Non-Compliance

TCPA violations can be costly. Statutory damages range from $500 to $1,500 per violation, and class action lawsuits have resulted in settlements worth hundreds of millions of dollars. The FTC can also pursue civil penalties for CAN-SPAM Act violations related to commercial messaging.

Note: This guide provides general educational information and does not constitute legal advice. Consult a qualified legal professional for compliance strategies specific to your business.