WAC 480-15-660. Supplemental estimates

(1) Carriers must provide a written supplemental estimate if the circumstances surrounding the move change in any way to cause the rates or charges to increase. (2) When providing a supplemental estimate, a carrier may not apply a higher rate to the articles and services identified in the original estimate. A carrier may choose to use a higher rate for new services or additional articles not included in the original estimate. (3) The carrier must complete the supplemental estimate as required by tariff. (4) The carrier and the customer must sign the supplemental estimate prior to the additional work being performed.