67 Pa. Code § 13.2
(a) Determination of status. Any motor vehicle originally designed to be used for the transportation of property, to which machinery has been attached, may be considered special mobile equipment if the attachment of the machinery:
The provisions of this § 13.2 amended September 13, 1985, effective September 30, 1985, 15 Pa.B. 3247. Immediately preceding text appears at serial page (90182).