(a) If an individual shipper elects not to observe a weighing, the shipper is presumed to have waived that right.

(b) If an individual shipper elects not to observe a reweighing, the shipper must waive that right in writing. The individual shipper may send the waiver notification via fax transmission; e-mail; overnight courier; or certified mail, return receipt requested.

(c) Waiver of the right to observe a weighing or re-weighing does not affect any other rights of the individual shipper under this part or otherwise.