Or. Admin. R. 333-120-0300
The licensee must use, to the extent practicable, process or other engineering controls (e.g., containment or ventilation) to control the concentrations of radioactive material in air.
ORS 453.635
ORS 453.605 - 453.807
PH 4-2007, f. & cert. ef. 3-1-07
PH 12-2006, f. & cert. ef. 6-16-06
HD 15-1994, f. & cert. ef. 5-6-94