(a)
No weighmaster shall weigh a vehicle, or combination of vehicles, for certification, when part of the vehicle, or connected combination, is not resting on the scale.
(b)
When weighing a combination of vehicles that will not rest on the scale platform at one time, the combination shall be disconnected and weighed separately. The weights so taken may be combined for the purpose of issuing a single certificate.
(c)
This section does not prohibit weighing of vehicles to determine compliance with the Vehicle Code.
(d)
This section does not apply to any of the following:
(1)
The weighing of seed cotton for purposes of ginning when the weights are obtained by weighing trailers not equipped with braking systems and are not used for the sale of the seed cotton.
(2)
Multiple draft or in-motion weighing operations that comply with the regulations adopted pursuant to Section 12107.
(3)
A combination of multiple railcars that contain grain or grain products if the consignor and the consignee to the transaction agree in writing to a multiple draft weighing operation.