Or. Admin. R. 603-017-0020
Recording thermometer shall be of the electric self-starting type enclosed in a moisture-proof case, permanently fastened to the substantial wall in vestibule or waiting room, five feet from the floor so that the recording chart is visible at all times. Instrument must be kept locked at all times except for changing the dial, inking, or repairing.
ORS 628
ORS 628.350
AD 286, f. 7-9-47, ef. 7-10-47