Or. Admin. R. 629-625-0440 – Stabilization

(1) Operators shall establish effective drainage and stabilize exposed material, which is potentially unstable or erodible to avoid potential delivery of sediment to waters of the state, by use of seeding, mulching, riprapping, leaving light slash, pull-back, or other effective means, as soon as practicable after completing operations or prior to the start of the rainy season. These areas include, but are not limited to, unsurfaced road grades, cut slopes, fill slopes, ditchlines, waste disposal sites, rock pits, and other areas with the potential for sediment delivery to waters of the state.
(2) During wet periods operators shall construct roads in a manner which prevents sediment from entering waters of the state.
(3) Operators shall not incorporate slash, logs, or other large quantities of organic material into road fills.

ORS 527.710 & Section 2(1), Chapter 33, Oregon Laws 2022

ORS 527.715, 527.765 & Section 2(2), Chapter 33, Oregon Laws 2022