Car Wash SMS Marketing Compliance: Opt-In Confirmation, STOP and Quiet Hours
Texting reaches members and leads directly, and it comes with rules. This guide explains the basic guardrails a car wash should have in place before sending marketing texts, and how Members Hacker builds them in.
Published 2026-10-20 · Members Hacker
Not legal advice. This is general information, not legal advice. Texting rules vary by state and change over time, and carriers set their own requirements. Review your texting program with your own legal counsel.
Why consent matters for texting members and leads
Marketing texts should only go to people who agreed to receive them. Clear consent protects your customers and your number's standing with carriers. It also means the people you text actually want to hear from you.
Opt-in confirmation step by step
In this guide, opt-in confirmation means two steps: the person gives their number with a consent checkbox, then replies YES to a text before any offer is sent.
- The customer enters their mobile number on your form and checks a consent box that explains what they'll receive.
- The first text asks them to reply YES to get offers, or STOP to opt out.
- Only after they reply YES do they get a welcome or offer.
Sample opt-in ask (change it to fit your wash):
[Wash name]: Reply YES to get member offers by text. Msg frequency varies. Msg & data rates may apply. Reply STOP to opt out, HELP for help.
Sample confirmation after YES:
[Wash name]: You're in. We'll text occasional offers. Reply STOP anytime to opt out.
STOP, HELP and the do-not-text list
- When someone replies STOP, stop marketing texts to that number right away.
- Add the number to a permanent do-not-text list so later imports or campaigns can't text it again.
- When someone replies HELP, reply with your business name and how to reach you.
Quiet hours and send windows
Under the federal TCPA rules, telephone solicitations may only go out between 8 AM and 9 PM in the recipient's local time (47 CFR 64.1200(c)(1)). Some states are stricter. Florida and Oklahoma, for example, bar commercial solicitation calls, including texts sent through automated systems, before 8 AM or after 8 PM local time and limit them to three per 24 hours on the same subject (Fla. Stat. § 501.616(6), 15 O.S. § 775C.4).
Members Hacker's default send window is 8 AM to 4 PM, well inside those limits. Rules change and carriers set their own, so check the rules that apply to you with your legal counsel.
Keeping a consent record
For each contact, keep a record of how and when they opted in: the form or page, the consent wording they saw, the date and time, and their YES reply. Keep STOP replies and their dates too.
Sender and number registration with carriers
Carriers require registration before a business texts US recipients: 10DLC registration for local numbers, toll-free verification for toll-free numbers. The registration describes your business, what you'll send, and how people opt in. Requirements and timing vary, so check with your texting provider, and ask about it during your demo.
How Members Hacker builds these guardrails in
- The first text to any new number is the YES/STOP ask. Offers go only after YES.
- STOP is honored right away, and the number goes on a permanent do-not-text list.
- Texts only go out inside the set send window, 8 AM to 4 PM by default.
- Each contact keeps a record of how and when they opted in.
- Contact imports check for duplicates.
These guardrails support a consent-based program, but they don't guarantee compliance. You're still responsible for your own consent wording and messages. More: Security, SMS terms, customer messaging, SMS lead capture, pricing, car wash overview, reducing churn, and declined payments.
Disclaimer: This is general information, not legal advice. Texting rules vary by state and change over time, and carriers set their own requirements. Review your texting program with your own legal counsel.
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Book a demoCommon questions
Is SMS marketing TCPA compliant?
It can be run in a consent-based way. Under the TCPA, marketing texts generally need the recipient's prior express written consent. Text only people who gave it, ask new contacts to reply YES first, honor STOP right away, send during daytime hours, and keep an opt-in record. Review your program with your legal counsel.
What is opt-in confirmation for text messages?
Opt-in confirmation means a contact gives their number with a consent checkbox, then has to reply YES to a text before any offer is sent. The first text is only the YES or STOP ask. People who don't reply YES never get offers, and anyone who replies STOP isn't texted again.
What must happen when someone texts STOP?
Marketing texts to that number should stop right away. Members Hacker adds the number to a permanent do-not-text list, so later campaigns and contact imports can't text it again. Keep a record of the STOP and its date, and don't send follow-up offers to try to win that person back.
What hours can a car wash send texts?
Federal TCPA rules allow solicitations between 8 AM and 9 PM recipient local time, and some states, such as Florida and Oklahoma, end at 8 PM. Members Hacker's default send window is 8 AM to 4 PM. Texts scheduled outside the window wait until it opens. Check your rules with legal counsel.
What is 10DLC or sender registration?
Carriers require registration before a business texts US recipients: 10DLC registration for local numbers, toll-free verification for toll-free numbers. It describes the business, the kinds of messages it sends and how people opt in. Requirements and timing vary, so check with your texting provider and ask about it during your demo.