Rule 4. On the waters of Horsehead lake, sections 15, 16, 21, 22, 27 and 28, town 15 north, range 8 west, township of Martiny, county of Mecosta, state of Michigan, no operator of any motorboat, during the period from 6:30 p.m. to 10:00 a.m. of the following day, shall:
Mich. Admin. Code R. 281.754.4