Mich. Comp. Laws § 484.1317a

Sec. 317a. (1) A 9-1-1 service district may implement an emergency notification system that will allow emergency service responders to contact service users within a specific geographic area regarding an imminent danger or emergency that may affect the user's health, safety, or welfare. (2) A person that provides an emergency notification system allowed under this section is a service supplier under section 604. (3) A service supplier shall upon request provide to each 9-1-1 service district within the provider's service area the telephone number and address data, including all listed, unlisted, and unpublished numbers and addresses, for each service user within the district. (4) A service supplier may charge a reasonable rate to provide the data required under subsection (3). (5) A 9-1-1 service district shall not request the data required under subsection (3) more than once per month. (6) The data provided under subsection (3) shall be used only for the purposes provided under this section. (7) This section does not apply to a wireless carrier. As used in this subsection, "wireless carrier" means a provider of 2-way cellular, broadband PCS, geographic area 800 MHz and 900 MHz commercial mobile radio service, wireless communications service, or other commercial mobile radio service as defined in 47 CFR 20.3, that offers radio communications that may provide fixed, mobile, radio location, or satellite communication services to individuals or businesses within its assigned spectrum block and geographical area or that offers real-time, 2-way voice or data service that is interconnected with the public switched network, including a reseller of the service. (8) A person who violates this section is guilty of a misdemeanor.