111 sections in this chapter.
R.571—37.9 Procedure for application for boat registration number—content
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37.9(1) Application. An applicant for a boat registration number shall submit the required information described in 33 CFR 174.17 (June 1, 2024). 37.9(2) Vessels not previously registered. If a person or business is making application for a boat registration number for a used ves…
R.571—37.90 Red Rock Lake, Marion County. Areas may be specifically designated for swimming
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and wading, restricted speed, and “no anchoring” areas. [ARC 9219C, IAB 5/14/25, effective 6/18/25]
R.571—37.91 Shell Rock River (Greene Impoundment), Floyd County. No motorboat shall be
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operated at a speed exceeding 5 miles per hour in the two zoned areas of the Greene Impoundment designated by buoys or other approved uniform waterway markers. The first zoned area extends from the dam in the city of Greene, upstream approximately one-quarter mile to the north bo…
R.571—37.92 Saylorville Lake, Polk County. Areas may be specifically designated for swimming,
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wading, and restricted speed. [ARC 9219C, IAB 5/14/25, effective 6/18/25]
R.571—37.93 Silver Lake, Delaware County. Unrestricted-horsepower vessels may be operated at a
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speed not greater than 5 miles per hour. [ARC 9219C, IAB 5/14/25, effective 6/18/25]
R.571—37.94 Snyder Bend Lake, Woodbury County. All vessels shall be operated at a speed not
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greater than 5 miles per hour within the zoned area 400 yards from the boat ramp south to the regulatory sign and buoys. Areas may be specifically designated for swimming by the use of regulatory buoys. [ARC 9219C, IAB 5/14/25, effective 6/18/25]
R.571—37.95 Storm Lake, Buena Vista County. Areas may be specifically designated for
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swimming by the use of regulatory buoys. [ARC 9219C, IAB 5/14/25, effective 6/18/25]
R.571—37.96 Thayer Lake, Union County. Unrestricted-horsepower vessels may be operated at a
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speed not greater than 5 miles per hour. [ARC 9219C, IAB 5/14/25, effective 6/18/25]
R.571—37.97 Three Mile Lake, Union County. Motorboats not to exceed 200 horsepower shall be
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permitted on Three Mile Lake. All vessels shall be operated at a speed not greater than 5 miles per hour when within 50 feet of another vessel that is not underway or is operating at a speed not greater than 5 miles per hour. 37.97(1) No vessel, except authorized emergency vessel…
R.571—37.98 Wapsipinicon River in Pinicon Ridge Park, Linn County. No motorboat shall be
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operated at a speed greater than 5 miles per hour within the zoned area designated by regulatory buoys or signs on the off-channel waters of the Wapsipinicon River above the dam at Central City, Linn County. The zoned area will be the off-channel waters created in and adjacent to…
R.571—37.99 Williamson Pond, Lucas County. Unrestricted-horsepower vessels may be operated at
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a speed not greater than 5 miles per hour. [ARC 9219C, IAB 5/14/25, effective 6/18/25]