(1) it's a violation of this statute for the driver of an emergency vehicle or ambulance to violates any of the following:

(a) an emergency vehicle or ambulance driver may only exercise privileges granted under 820.300 (exemptions from traffic laws) when responding to an emergency call or when responding to, but not upon returning from, an emergency. An emergency vehicle driver may exercise privileges granted under 820.300 (exemptions from traffic laws) when in pursuit of an actual or suspected violator of the law.

(b) an emergency vehicle or ambulance driver must use a visual signal with appropriate warning lights when they are exercising privileges granted under 820.300 (exemptions from traffic laws)

(c) in addition to any required visual signal, an emergency vehicle or ambulance driver must make use of an audible signal meeting the requirements under ORS 820.370 (Ambulance or emergency vehicle sirens) when the driver is proceeding past a stop light or stop sign under privileges granted by 820.300 (exemptions from traffic laws) (1)(b)

(d) an emergency vehicle or ambulance driver who is exercising privileges granted under 820.300 (exemptions from traffic laws) by parking or standing an emergency vehicle in disregard of a regulation or ordinance prohibiting that parking, stopping or standing, will not use the audible signal.

(e) in exercising the privileges under 820.300 (exemptions from traffic laws) (1)(e) relating to buses and bus safety lights, an emergency vehicle or ambulance driver must first stop the vehicle and then must:

(A) determine that no passengers of the bus remain on the roadway; and

(B) proceed with caution

(f) in proceeding past any stop light or stop sign under the privileges granted by 820.300 (exemptions from traffic laws), an emergency vehicle or ambulance driver must slow down as may be necessary for safe operation.

(g) an emergency vehicle or ambulance driver must not exceed any designated speed limit to an extent which endangers persons or property

(2) an emergency vehicle driver that is operated as an emergency police vehicle is not required to use either visual signal or the audible signal as described in this statute in order to exercise the privileges granted in 820.300 (exemptions from traffic laws) when it reasonably appears to the driver that the use of either or both would prevent or hamper the apprehension or detection of a violator of a statute, ordinance or regulation