WVC 17 C- 13 A- 4
§17C-13A-4. Increase of weight limit.
The maximum gross weight limit and axle weight limit for any
motor vehicle equipped with idle reduction technology may be
increased by an amount necessary to compensate for the additional
weight of the idle reduction technology as provided under 23 U.S.C.
§127(a)(12), as that section exists on the effective date of this
article. The additional amount of weight allowed by this section
may not be construed to be in addition to the tolerance authorized
under section eleven-a, article seventeen of this chapter.