It is unlawful to take for commercial purposes crayfish which are less than 3-5/8 inches long. Crayfish will be measured from the tip of the bony spike extending between and beyond the eyes (acumen) to the distal edge of the last bony plate in the tail (telson). Any undersized crayfish taken must be immediately returned unharmed to the water.
Or. Admin. Code § 635-005-0870
Stat. Auth.: ORS 506.036, 506.109, 506.119 & 506.129
Stats. Implemented: ORS 506.109, 506.129 & 506.306