67 Pa. Code § 63.111
Registration fees for apportionable vehicles shall be determined as follows:
(1) Obtain the percentage factor for each member jurisdiction by dividing the miles travelled in each jurisdiction by the total fleet miles accrued during the preceding year. The Commonwealth mileage shall include all of the following:
The provisions of this § 63.11 adopted April 29, 1983, effective April 30, 1983, 13 Pa.B. 1440; readopted May 6, 1988, effective immediately and applies retroactively to April 30, 1988, 18 Pa.B. 2130. Immediately preceding text appears at serial pages (87692) to (87693).
This section cited in 67 Pa. Code § 63.113 (relating to trailer and auxiliary axle fees).