Sec. 18b.

(1) "Gross combination weight rating" or "GCWR" means a value specified by the manufacturer of the power unit if that value is displayed on the federal motor vehicle safety standard (FMVSS) certification label required by the National Highway Traffic Safety Administration.

(2) "Gross vehicle weight rating" or "GVWR" means the sum of the gross vehicle weight ratings, or the sum of the gross vehicle weights of the power unit and the towed unit or units, or any combination of the gross vehicle weight ratings and the gross vehicle weights of power unit and towed unit or units that produces the highest value. The gross combination weight rating of the power unit shall not be used in determining whether the vehicle is a commercial motor vehicle when that power unit is not towing another unit.

History: Add. 1988, Act 346, Imd. Eff. Oct. 25, 1988 ;-- Am. 2015, Act 11, Eff. July 8, 2015 Compiler's Notes: Section 2 of Act 346 of 1988 provides:“(1) Except as otherwise provided in this section, this amendatory act shall take effect October 1, 1989.“(2) Sections 634, 710g, 722, 723, 724, 802, and 907 of this amendatory act shall take effect January 1, 1989.“(3) Sections 4B and 801 of this amendatory act shall take effect upon the date of enactment of this amendatory act.”Section 2 of Act 173 of 1989 provides:“(1) The amendments made to sections 8b, 57, 67a, 301, 303, 305, 306, 307, 309, 310, 312d, 312e, 312f, 312g, 312h, 314, 314b, 319a, 321a, 323, 728, 732, 743, and 907 of Act No. 300 of the Public Acts of 1949, being sections 257.8b, 257.57, 257.67a, 257.301, 257.303, 257.305, 257.306, 257.307, 257.309, 257.310, 257.312d, 257.312e, 257.312f, 257.312g, 257.312h, 257.314, 257.314b, 257.319a, 257.321a, 257.323, 257.728, 257.732, 257.743, and 257.907 of the Michigan Compiled Laws, by Act No. 346 of the Public Acts of 1988 shall take effect January 1, 1990.“(2) Enacting section 2 of Act No. 346 of the Public Acts of 1988 is repealed.”