Michigan Compiled Laws, Chapter 259. Aviation § 259.788

(a) The use of a model rocket engine for pyrotechnic purposes or for the primary purpose of producing a spectacular display of color, sound, light or any combination thereof, or in any way contrary to the provisions of this act.

(b) Tampering with or using an engine in any manner or degree contrary to the purpose for which the engine is designed and intended to be used, or contrary to the provisions of this act.

(c) The ignition of an engine with such instantaneous and violent expansion of gas or relinquishment of energy as to cause rupture of the casing.

(d) The launching, operating, discharging, flying or otherwise activating of a model rocket without first having fully complied with the foregoing provisions of this act.