Michigan Compiled Laws, Chapter 550. General Insurance Laws § 550.1414b

Sec. 414b. (1) A health care corporation may offer group wellness coverage. Wellness coverage may provide for an appropriate rebate or reduction in premiums or for reduced copayments, coinsurance, or deductibles, or a combination of these incentives, for participation in any health behavior wellness, maintenance, or improvement program offered by the employer. The employer shall provide evidence of demonstrative maintenance or improvement of the members' health behaviors as determined by assessments of agreed-upon health status indicators between the employer and the health care corporation. Any rebate or premium provided by the health care corporation is presumed to be appropriate unless credible data demonstrate otherwise, but shall not exceed 30% of paid premiums, unless otherwise approved by the commissioner. A health care corporation shall make available to employers all wellness coverage plans that it markets to employers in this state.

(2) A health care corporation may offer nongroup wellness coverage. Wellness coverage may provide for an appropriate rebate or reduction in premiums or for reduced copayments, coinsurance, or deductibles, or a combination of these incentives, for participation in any health behavior wellness, maintenance, or improvement program approved by the health care corporation. The member shall provide evidence of demonstrative maintenance or improvement of the individual's or family's health behaviors as determined by assessments of agreed-upon health status indicators between the member and the health care corporation. Any rebate of premium provided by the health care corporation is presumed to be appropriate unless credible data demonstrate otherwise, but shall not exceed 30% of paid premiums, unless otherwise approved by the commissioner. A health care corporation shall make available to individuals all wellness coverage plans that it markets to individuals in this state.

(3) A health care corporation is not required to continue any health behavior wellness, maintenance, or improvement program or to continue any incentive associated with a health behavior wellness, maintenance, or improvement program.