Michigan Compiled Laws, Chapter 324. Natural Resources and Environmental Protection § 324.17202

Sec. 17202. (1) Except as provided in subsection (2), beginning on January 1, 2003, a person shall not sell, offer for sale, or offer for promotional purposes a mercury thermometer in this state or for use in this state. This subsection does not apply if the mercury thermometer is sold or offered for either of the following:

(2) Beginning on January 1, 2003, a person shall not sell, offer for sale, or offer for promotional purposes a mercury fever thermometer in this state or for use in this state, except by prescription. A manufacturer of mercury fever thermometers shall supply clear instructions on the careful handling of the thermometer to avoid breakage and proper cleanup should a breakage occur with each mercury fever thermometer sold by prescription.