(a) Every motor vehicle operated by a motor
carrier shall be marked on each side, in letters at least 2 inches in height,
and at least 1/2 inch in width, the name and address of the motor carrier and
the number of the certificate of public convenience or permit as follows: "PA.
P.U.C. NO. A ____________ . " If the vehicle is owned by someone other than the
motor carrier operating it, there shall be shown on each side of the vehicle,
in letters at least 2 inches in height and at least 1/2 inch in width, the
wording: "OPERATED BY (name and address of authorized motor carrier), PA.
P.U.C. NO. A ____________." If a removable device is used to identify the
operating carrier as lessee, the device shall be of durable material and
securely affixed, to the vehicle operated, throughout the duration of the
(b) Upon relinquishing
possession of the equipment, the motor carrier operating the leased vehicle
under this section shall remove the legend or removable device displayed on the
vehicle showing it to be the operating carrier.
(c) In the event that the certificate of a
common carrier or permit of a contract carrier is canceled or revoked by the
Commission or when a motor vehicle is permanently removed from service, the
carrier shall immediately cause the certificate or permit number to be removed
from its vehicle.