Michigan Compiled Laws, Chapters 475 to 479 Motor Carrier Act § 477.7a

(a) The motor carrier of household goods notifies the commission that it wishes the commission to consider the rate, fare, or charge under this section.

(b) The rate, fare, or charge is the product of independent action on the part of the motor carrier of household goods proposing the rate, fare, or charge.

(c) The aggregate of increases and reductions in the rate, fare, or charge is not more than 20% above or below the base rate, fare, or charge in effect 1 year before the effective date of the proposed rate, fare, or charge.