SMS Regulatory Compliance
About Muster
Muster is an emergency safety check-in platform that helps organizations account for their members during emergencies.
Who sends messages: All SMS messages are sent by the Muster platform on behalf of the subscribing organization. Messages are operational in nature and serve a safety purpose only.
Message types: Muster only sends two types of messages:
- A one-time notification to confirm a member is opted-in when first added to the platform by their organization.
- A safety check-in request message when the organization initiates a "Muster Call" event.
Muster does not send marketing, promotional, affiliate, or unsolicited messages of any kind.
Consent (SMS opt-in)
Organizations collect member consent through a written form as part of standard onboarding.
Sample Written Consent Form
Authorization to send SMS Messages
[Organization name] uses a service called Muster for emergency safety check-ins. If there's ever an emergency, evacuation, or drill, we'll send a text message to your phone so we can confirm you're safe. These messages are sent by Muster on behalf of [Organization name].
Message and data rates may apply. You will only receive a message during an actual event. We will never send marketing messages. You can opt out at any time by replying STOP to any message you receive. If you ever end your relationship with the organization you will also be automatically removed from future messages.
[ ] I consent to receive these safety check-in messages at the phone number listed below.
__________________________
Phone Number
__________________________
Printed Name
__________________________
Signature
__________________________
Date
Organization Confirmation
Organizations enroll their members in the Muster platform by uploading their information via an admin screen. The below screenshot demonstrates the platforms's explicit confirmation that consent was obtained for each member as described above.
Enrollment Notification
When a member is first enrolled they immediately receive an SMS confirming enrollment and providing clear opt-out instructions. This message is sent before any muster events occur.
Opt-Out
Any member can opt out at any time by replying STOP to any Muster message. Opt-outs are processed immediately and permanently, applied to all future messages, and logged in the member's record. Opted-out members will not receive further messages from Muster — including during active muster events. Members who have opted out may not be re-enrolled without affirmative new consent.
Message Frequency
Message frequency is low and entirely determined by the organization's use of the service. Members receive one enrollment notification upon being added, and one check-in SMS per muster event their organization initiates. Muster call events are infrequent by nature — typically only during actual emergencies or scheduled safety drills.
Sample Message
When an organization issues a Muster Call event, all active members of the organization that have not opted out will receive a single message that provides them with a check-in link.
Member Deactivation
When a member is no longer affiliated with an organization they are marked inactive in Muster and will no longer receive any messages. No action is required by the member.
Contact
For questions about Muster's SMS practices, please contact us.