// Free intro
This page is a free intro. It covers “Chapter 1: The Consent Landscape – TCPA & 10DLC Basics” and “Chapter 2: Consent Collection – What the Law Requires”, two of the 13 sections in this guide. The complete version is published as TCPA Consent System Design ($39 PDF book), with every section in full plus the templates, checklists and worked examples.
📖 Chapter 1: The Consent Landscape – TCPA & 10DLC Basics
Understanding the legal framework is the foundation of any compliant consent system.
Key Concepts
- TCPA (Telephone Consumer Protection Act) – limits automated calls & texts to consumers.
- 10DLC (10-Digit Long Code) – carrier-approved standard numbers for marketing.
- Opt-In vs. Opt-Out – the difference between permission and revocation.
Stat-Based Risk Assessment
“Every 1 million opt-ins cost roughly $500 in legal exposure.” – Legal Risk Journal, 2024
📤 Chapter 2: Consent Collection – What the Law Requires
The TCPA demands unambiguous, affirmative consent. This chapter breaks it down by channel.
SMS Consent Types
| Channel | Consent Type | What to Capture | Storage |
|---|---|---|---|
| SMS | Single Opt-In | Phone number, consent timestamp, message ID | Encrypted DB + PDF audit trail |
| SMS | Double Opt-In | Phone number, 2 messages, timestamps, click-through URL | Encrypted DB + audit log |
Verbal Consent (Phone)
When collecting consent over a voice call, you must record the conversation or provide a written summary.
Verbal Consent Script
Agent: "We’d like to send you SMS updates. By replying ‘YES’, you consent to receive these messages. Is that okay?" Consumer: "Yes." Agent: "Thank you. Your consent is recorded. If you want to stop, reply ‘STOP’."
Opt-Out Handling
- Any consumer may opt-out at any time. The opt-out must be honored within 10 minutes.
- Automated STOP replies must trigger an immediate purge of that number from active lists.
What the full version covers
The free intro ends here. The remaining 11 sections are available in the 62-page PDF book:
- Chapter 3: Documentation & Evidence Trail: Evidence Trail Components, Template – Consent Receipt PDF, Storage Example – SQL Table.
- Chapter 4: Double vs. Single Opt-In: Single Opt-In.
- Chapter 5: Checkbox & Verbal Pitfalls: Checkbox Rules.
- Chapter 6: Opt-Out Handling
- Chapter 7: Log Management
- Chapter 8: Technical Implementation: SMS Consent Capture (Node.js), Consent Withdrawal (Python Flask).
- Chapter 9: Decision Tree
- Chapter 10: Templates & Checklists: Consent Text Templates, Quick-Reference Error Codes.
- Chapter 11: Sample Code: Node.js – Twilio SMS Consent.
- Chapter 12: Case Studies: RetailChain X.
- Appendix: A. 10DLC Registration, B. Compliance Matrix.
The book also includes:
- The fields every consent record must capture, an event-based data model, and retention.
- Multi-channel opt-out management and pre-send checks.
- Audits, a readiness self-assessment, and a 90-day roadmap.
- A cheat sheet inside the front cover.
Get the full book
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PDF book · 62 pages · $39
TCPA Consent System Design
Building Opt-In, Evidence, and Opt-Out Systems That Hold Up
- The TCPA's two consent standards, Do Not Call rules for texts, the 2025 FCC changes, and state mini-TCPAs.
- Web and app consent design, including the pre-checked box in all its disguises.
- Keyword, point-of-sale, paper, and verbal consent.
- Consent language templates for promotional, transactional, healthcare, financial, and B2B programs.