(a) Categories of noise emission sources, including the categories of motor vehicles and aircraft.
(b) Requirements and specifications for equipment to be used in the monitoring of noise emissions.
(c) Procedures for the collection, reporting, interpretations and use of data obtained from noise monitoring activities.
(2) The Environmental Quality Commission shall investigate and, after appropriate public notice and hearing, shall establish maximum permissible levels of noise emission for each category established, as well as the method of measurement of the levels of noise emission.
(3) The Environmental Quality Commission shall adopt, after appropriate public notice and hearing, standards for the control of noise emissions which shall be enforceable by order of the commission.
(4) In adopting noise control rules, levels and standards under this section, the Environmental Quality Commission shall not adopt any rule that would impose liability for any activity for which immunity from civil and criminal liability is granted or for which an action for nuisance is prohibited under ORS 467.131 and 467.133. [1971 c.452 §2; 1973 c.107 §1; 1973 c.835 §159; 1995 s.s. c.3 §40d; 1996 c.8 §4]