Michigan Compiled Laws, Chapter 259. Aviation § 259.786

(a) A device or mechanism shall be used which shall restrict the horizontal motion of the model rocket until sufficient flight velocity shall have been attained for reasonably safe, predictable flight.

(b) Launching or ignition shall be conducted by remote electrical means fully under the control of the person launching the model.

(c) A launching angle of more than 60 degrees from the horizontal shall be used.

(d) At least 1 adult person shall inspect each model rocket before flight and shall supervise the launching of each model rocket.

(e) All persons in the vicinity of the launching shall be advised that a launching is imminent before a model rocket is ignited and launched.

(f) Winds shall be less than 20 miles per hour and visibility shall be greater than 2,000 feet.

(g) A model rocket in flight shall not create a hazard to aircraft.

(h) A model rocket shall not be used as a weapon against ground or air targets.