571—45.4 (462A) Horsepower limitations on artificial lakes.
	 45.4(1) General horsepower limitation. On artificial lakes of 100 acres or less, a vessel shall only be operated with an electric motor or with an outboard motor where permitted by subrule 45.4(2).
	 45.4(2) Horsepower limitation exceptions for artificial lakes of 100 acres or less. Motors larger than 1½ horsepower may be operated on the following lakes as designated:
Avenue of the Saints Lake, Bremer County—unrestricted horsepower at a no-wake speed.
Banner Lakes at Summerset State Park, Warren County—motor boats of outboard or inboard/outdrive type and unrestricted horsepower at a no-wake speed.
Beaver Lake, Dallas County—unrestricted horsepower operated at a no-wake speed.
Beeds Lake, Franklin County—unrestricted horsepower operated at a no-wake speed.
Black Hawk Pits, Sac County—unrestricted horsepower operated at a no-wake speed.
Crawford Creek Recreation Area Lake, Ida County—unrestricted horsepower operated at a no-wake speed.
Deer Creek Lake, Plymouth County—unrestricted horsepower operated at a no-wake speed.
Fogle Lake, Ringgold County—unrestricted horsepower operated at a no-wake speed.
George Wyth Lake, Black Hawk County—unrestricted horsepower operated at a no-wake speed.
Lake Iowa, Iowa County—unrestricted horsepower operated at a no-wake speed.
Lake of Three Fires, Taylor County—unrestricted horsepower operated at a no-wake speed.
Loch Ayr, Ringgold County—outboard motors not greater than 100 horsepower.
Meadow Lake, Adair County—unrestricted horsepower operated at a no-wake speed.
Otter Creek Lake, Tama County—unrestricted horsepower operated at a no-wake speed.
Silver Lake, Delaware County—unrestricted horsepower operated at a no-wake speed.
Thayer Lake, Union County—unrestricted horsepower operated at a no-wake speed.
Williamson Pond, Lucas County—unrestricted horsepower operated at a no-wake speed.
	 45.4(3) Horsepower limitations for artificial lakes of more than 100 acres in size. On artificial lakes of more than 100 acres, vessels may be operated with unrestricted horsepower at a no-wake speed except as otherwise permitted by subrule 45.4(2). The following artificial lakes have special horsepower restrictions:
	  a.   	 Green Valley Lake, Union County—no inboard or racing-type craft are permitted. Vessels must be operated at a no-wake speed except in designated ski areas as established in 571—36.7(462A).
	  b.   	 Lake Icaria, Adams County—motorboats of outboard or inboard/outdrive type with power not to exceed 300 horsepower. Vessels must be operated at a no-wake speed when within 50 feet of another vessel which is not underway or is operating at a no-wake speed. Additional speed and distance regulations apply as established in 571—40.20(462A).
	  c.   	 Lake McBride, Johnson County—unrestricted horsepower operated at a no-wake speed only from September 8 through May 20 of each year. A motorboat with a power unit exceeding 10 horsepower shall not be permitted the remainder of the year.
	  d.   	 Three Mile Lake, Union County—motorboats of outboard or inboard/outdrive type with power not to exceed 200 horsepower. Vessels must be operated at a no-wake speed when within 50 feet of another vessel which is not underway or is operating at a no-wake speed. Additional speed and distance regulations apply as established in 571—40.44(462A).