Clear consent The customer must take an affirmative step, like checking a box or replying with a typed response. The language used to invite contacts to opt in should be clear and conspicuous. Opt-out mechanism Businesses must provide a way for consumers to opt out of receiving further messages. This includes including an opt-out mechanism in each text message sent. Record-keeping Businesses should keep records of express written consent for at least five years. Time restrictions Businesses should only message recipients between 8 AM and 9 PM in the recipient's time. Business name Businesses should include their business name in all text messages. Honor opt-outs Businesses should honor opt-outs and remove people from their lists if requested