Understanding SMS Marketing Laws

SMS marketing is governed by multiple layers of regulation, from federal laws to carrier policies. Understanding these requirements is essential for maintaining compliance and avoiding penalties.

Federal Regulations

Telephone Consumer Protection Act (TCPA)

Requirement Details Penalties for Violation
Prior Express Consent Must obtain written consent before sending marketing texts $500-$1,500 per message
Opt-Out Mechanism Must provide clear way to stop messages $500-$1,500 per message
Time Restrictions No texts before 8 AM or after 9 PM recipient's time $500-$1,500 per message
Identification Must clearly identify the sender $500-$1,500 per message
Autodialer Rules Special rules for automated systems Up to $1,500 per message

CAN-SPAM Act

Requirement Application to SMS Compliance Actions
Truthful Headers Sender identification must be accurate Use registered business name
Honest Subject Lines Message content must match purpose Clear, descriptive messaging
Disclosure Must identify message as advertisement Include "Ad:" or similar identifier
Opt-Out Honor Must process unsubscribe requests within 10 days Automated opt-out processing
Physical Address Include valid postal address Add business address to messages

State-Level Regulations

State Additional Requirements Key Differences
California (CCPA) Enhanced privacy rights, data deletion Must honor data deletion requests
Illinois (BIPA) Biometric data protection Affects identity verification
New York Additional consent requirements Stricter opt-in standards
Texas Enhanced penalties for violations Higher fines for non-compliance
Florida Specific telemarketing rules Additional disclosure requirements

Twilio-Specific Requirements

A2P 10DLC Registration

Component Requirement Timeline Consequences of Non-Compliance
Brand Registration Register your business with carriers 1-2 weeks Message filtering, reduced throughput
Campaign Registration Register each use case/campaign type 1-2 weeks Campaign rejection, blocking
Phone Number Verification Verify ownership of sending numbers 24-48 hours Number suspension
Compliance Monitoring Ongoing monitoring of message content Continuous Account suspension

Message Content Requirements

Element Requirement Example Non-Compliance Result
Sender Identification Clear business name in every message "From ABC Company:" Message filtering
Opt-Out Instructions Standard opt-out language "Reply STOP to opt out" TCPA violations
Message Purpose Clear indication of message type "Promotional offer:" or "Account alert:" Spam classification
Contact Information Way to reach customer service "Questions? Call 555-0123" Consumer complaints

Consent Requirements

Types of Consent

Consent Type Definition When Required Documentation Needed
Express Written Consent Signed agreement to receive texts Marketing messages Signed form, timestamp, IP address
Express Oral Consent Verbal agreement (recorded) Phone-based opt-ins Call recording, transcript
Implied Consent Consent through action Existing customer relationship Transaction records, relationship proof
Double Opt-In Confirmation after initial opt-in Best practice for all campaigns Initial opt-in + confirmation response

Consent Documentation

Required Information Details Retention Period Storage Requirements
Date and Time When consent was given 3-5 years after opt-out Secure, accessible database
Method of Consent How consent was obtained 3-5 years after opt-out Audit trail required
Consent Language Exact words used in opt-in 3-5 years after opt-out Version control needed
IP Address/Location Where consent was given 3-5 years after opt-out Geographic compliance
Opt-In Source Website, form, phone call, etc. 3-5 years after opt-out Source verification

Invalid Consent Sources