OAR 437-007-0510
Flagging
(1)
Warning signs and a flagger(s) must be placed in advance of active operations, or other equivalent protection must be used on roads to control traffic where hazardous conditions are created from forest activities, such as, but not limited to:(a)
Skylines and running lines or rigging across road grades, excluding tightened guylines.(b)
The movement of logs, chunks or debris across or suspended over road grades.(c)
Timber cutting operations.(d)
Helicopter logging operations.(2)
Flaggers must wear vests of a high-visibility color and use a minimum 18-inch x 18-inch “STOP/SLOW” paddle to control traffic.(3)
Warning signs and flagging activities along state and county roads must comply with the requirements of the Millennium Edition of the (FHWA) Manual of Uniform Traffic Control Devices (MUTCD), December 2000.
Source:
Rule 437-007-0510 — Flagging, https://secure.sos.state.or.us/oard/view.action?ruleNumber=437-007-0510
.