Or. Admin. R. 629-643-0150 – Type D Vegetation Retention Requirements

(1) For classified small Type D stream segments that extend beyond the tree retention areas described in the Small Type Np requirements in OAR 629-643-0130 and OAR 629-643-0143, the operator shall retain in both Western Oregon and Eastern Oregon:
1. (a) All understory vegetation within 10 feet of the active channel.
2. (b) All trees within 20 feet of the edge the active channel.
3. (c) All trees leaning over the channel.
(2) The operator may count retained trees along Type D streams that otherwise meet the requirements for wildlife leave trees within harvest type 2 or harvest type 3 units, pursuant to ORS 527.676.
(3) A small forestland owner shall not use the small forestland owner minimum option or tax credits for Type D streams.

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

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