Or. Admin. R. 629-643-0143
(1) The small forestland owner shall follow this rule for small Type N streams in addition to the rules described in OAR 629-643-0130. The small forestland owner shall apply the tree retention requirements according to OAR 629-643-0141 for Western Oregon and OAR 629-643-0142 for Eastern Oregon.
(a) If an area of inquiry extends beyond the small forestland owner ownership boundary and there is not a flow feature in the last 100 feet before reaching the small forestland owner’s ownership boundary, the small forestland owner shall extend the tree retention area to the shorter of:
(b) When the area of inquiry extends to the furthest upstream flow feature of the ownership boundary, the small forestland owner shall extend the R-ELZ beyond the furthest upstream flow feature within the ownership boundary to the ownership boundary, provided that prior surveys documented in the department’s reporting and notification system identify evidence of a flow feature upstream of the ownership boundary that will alter the harvest zone layout.
(2) If the small forestland owner selects the standard practice, and there is 100 feet or more of surveyed dry stream between two flow features located downstream of the RH Max in which tree retention is required, the small forestland owner:
ORS 527.710 & Section 2(1), Chapter 33, Oregon Laws 2022
ORS 527.715, 527.765 & Section 2(2), Chapter 33, Oregon Laws 2022