Modifications to construction documents for buildings/structures are an integral part of the practice of architecture; and as such, additional drawings and specifications which become part of change orders and/or addenda to alter those documents must bear the stamp and signature, as required, of the registered architect or engineer responsible for the modifications.
Or. Admin. Code § 806-010-0115
Statutory/Other Authority: ORS 671.125
Statutes/Other Implemented: ORS 671.020