OAR 340-035-0030

Table 4

Off-Road Recreational Vehicle Standards

Allowable Noise Limits

Model Year

Maximum Noise Level (dBA and distance from vehicle to measuring point)

Stationary Test

20 inches (.5 meters)

Moving Test at 50 feet

(15.2 meters)

Motorcycles

1975 and before

102

85

After 1975

99

82

Snowmobiles

1971 and before

---

86

1972-1975

---

84

After 1975

---

80

Boats

Underwater exhaust - all

100

84

Atmosphere exhaust - all

100

84

All Others

Front engine - all

95

78

Mid and Rear Engines - all

97

78