OAR 738-050-0040. Helicopters

(1) Approaches and departures shall not exceed 700' MSL. (2) Land and take-off only in areas designated for helicopter use. Training activities may be conducted on runway using fixed-wing traffic pattern provided that no conflict with fixed-wing traffic is generated. (3) Avoid hovering near fixed-wing aircraft. (4) Remain clear of persons, vehicles and buildings so as not to endanger or interfere with persons or property.