Iowa Administrative Code

vessels may be operated at a speed not greater than 5 miles per hour. [ARC 9219C, IAB 5/14/25, effective 6/18/25]

speed not greater than 5 miles per hour. [ARC 9219C, IAB 5/14/25, effective 6/18/25]

Beaver Creek within the property boundaries of the Camp Dodge military reservation in Polk County. 37.34(1) Watercraft and vehicles shall be prohibited from entering the safety zone in order to prevent access to areas within Camp Dodge where a hazard to the public may exist. This…

speed not greater than 5 miles per hour. [ARC 9219C, IAB 5/14/25, effective 6/18/25]

than 5 miles per hour within the zoned area marked by the regulatory buoys. The zoned area shall be the area commonly known as Town Bay on the northwest corner of Black Hawk Lake. Areas may be specifically designated for swimming by the use of regulatory buoys. [ARC 9219C, IAB 5/…

speed not greater than 5 miles per hour. [ARC 9219C, IAB 5/14/25, effective 6/18/25]

than 5 miles per hour within the two zoned areas designated by regulatory buoys or other approved uniform waterway markers. Areas may be specifically designated for swimming by the use of regulatory buoys. 37.38(1) Zone 1 shall extend 570 yards from the boat ramp east to the regu…

known as Shoal Pointe Canal shall be operated at a speed not greater than 5 miles per hour. The City of Carter Lake shall designate and maintain the 5-mile-per-hour speed zone with marker buoys approved by the commission. [ARC 9219C, IAB 5/14/25, effective 6/18/25]

with an efficient flame arrestor, backfire trap or other similar device. An acceptable flame arrestor shall have evidence of compliance with UL Standard 1111 (October 31, 2008) or the revised 2020-02 Society of Automotive Engineers Standard J1928, titled “Devices Providing Backfi…

37.40(1) Black Hawk County waters. All vessels shall be operated at a speed not greater than 5 miles per hour when within 600 feet of the Franklin Street bridge. This 600-foot zone shall be designated by buoys, signs, or other approved uniform waterway marking devices. No vessel …

swimming with the use of regulatory buoys. Areas within close proximity of dredging operations may be designated as areas where the speed of vessels is restricted to not greater than 5 miles per hour. [ARC 9219C, IAB 5/14/25, effective 6/18/25]

swimming, wading, and restricted speed areas. [ARC 9219C, IAB 5/14/25, effective 6/18/25]

vessels may be operated at a speed not greater than 5 miles per hour. [ARC 9219C, IAB 5/14/25, effective 6/18/25]

than 5 miles per hour within the 25-acre zoned area designated by regulatory buoys. [ARC 9219C, IAB 5/14/25, effective 6/18/25]

operated at a speed not greater than 5 miles per hour. [ARC 9219C, IAB 5/14/25, effective 6/18/25]

the Mississippi River in Lee County to the northerly meander lines of both the East and West Branches shall be governed by this departmental rule as well as all applicable state laws and regulations. Areas may be specifically designated for swimming, wading, and restricted speed …

miles per hour within 300 feet of shore on all lakes in Dickinson County. No vessels, except authorized emergency vessels, shall be operated at speeds greater than 25 miles per hour at any time between one-half hour after sunset and sunrise on all lakes located in Dickinson Count…

swimming by the use of regulatory buoys. [ARC 9219C, IAB 5/14/25, effective 6/18/25]

speed not greater than 5 miles per hour. [ARC 9219C, IAB 5/14/25, effective 6/18/25]

37.5(1) Vessels at anchor. a. A vessel at anchor shall exhibit between the hours of sunset and sunrise: (1) In the forepart, a white light to show 360 degrees around the horizon or one ball. (2) At or near the stern and at a lower level than the light prescribed in 37.5(1)“a”(1) …

operated at a speed not greater than 5 miles per hour. [ARC 9219C, IAB 5/14/25, effective 6/18/25]

37.51(1) No inboard boats, jet skis, or jet-powered boats are permitted. All boats must maintain a speed not greater than 5 miles per hour on the entire lake between the hours of sunset and 10:30 p.m. and between 4 a.m. and 10 a.m. No boating is permitted on the lake between 10:3…

37.52(1) Iowa River, Iowa Falls, Hardin County. a. All vessels operated in a designated zone between the River Street Bridge and the dock at Dougan’s Landing shall be operated at a speed not greater than 5 miles per hour. b. The city of Iowa Falls shall designate and maintain the…

the use of regulatory buoys. [ARC 9219C, IAB 5/14/25, effective 6/18/25]

than 5 miles per hour in the boat harbor and at the boat harbor entrance within the zoned area extending 300 feet from two points on shore and 100 feet in width, equidistant from either side of the harbor entrance. The Wright County conservation board shall designate the boat har…

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. 37.55(1) No vessel, except authorized emergency vessels, shall be permitted in areas specifically designated for swimming and wading that are pl…

not greater than 5 miles per hour. [ARC 9219C, IAB 5/14/25, effective 6/18/25]

at a speed not greater than 5 miles per hour 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. [ARC 9219C, IAB 5/14/25, effective 6/18/25]

greater than 5 miles per hour within the zoned areas 300 feet from shore around Lake Manawa in Pottawattamie County. [ARC 9219C, IAB 5/14/25, effective 6/18/25]

motorboats, except authorized emergency vessels, shall be operated at a speed not greater than 5 miles per hour year-round on two portions of Lake Odessa known as 1) the Sand Run Chute, lying south of the main lake to a point 100 yards south of the Sand Run Chute boat ramp, and 2…

37.6(1) PFDs shall be U.S. Coast Guard-approved. Each PFD must be appropriately sized for the person for whom it is intended and be used in accordance with current U.S. Coast Guard safety equipment requirements as specified in 33 CFR 175.15 and 46 CFR 160 (June 1, 2024), any requ…

a speed not greater than 5 miles per hour. [ARC 9219C, IAB 5/14/25, effective 6/18/25]

37.61(1) Areas may be designated as restricted speed, direction, swimming and no boating areas. 37.61(2) Areas may be designated with operation restrictions pursuant to Iowa Code sections 462A.17A and 462A.17B. [ARC 9219C, IAB 5/14/25, effective 6/18/25]

hour within the zoned area designated by regulatory buoys on Little Wall Lake in Hamilton County. The zoned area will not exceed approximately 20 acres in the northeast portion of the lake identified by a line from a point on the high-water mark approximately 296.6 feet west of t…

beginning at the dam and extending north approximately to the mouth of “Bait Shop Bay” shall be operated at a speed no greater than 5 miles per hour. The Decatur County conservation board shall designate the speed zone with marker buoys approved by the commission. [ARC 9219C, IAB…

horsepower. A motorboat shall not be operated within 100 feet of shore at a speed greater than 5 miles per hour. [ARC 9219C, IAB 5/14/25, effective 6/18/25]

for swimming by the use of regulatory buoys. [ARC 9219C, IAB 5/14/25, effective 6/18/25]

restrictions shall be obeyed, including restrictions within posted areas that are marked with approved buoys, on the impoundment of the Maquoketa River in Delaware County, extending westerly and northerly from the line between Sections 29 and 30 in Delhi Township in said county, …

speed not greater than 5 miles per hour. [ARC 9219C, IAB 5/14/25, effective 6/18/25] MISSISSIPPI RIVER

Iowa waters above and below all navigation lock and dam structures on the Mississippi River between the Iowa-Minnesota border and the Iowa-Missouri border. The established zone shall be 600 feet upstream and 150 feet downstream from the roller gate or tainter gate section of the …

traffic, shall be operated at a speed not greater than 5 miles per hour within an area extending 300 feet from shore and beginning at a point 800 feet north of river mile marker 662.2 and proceeding to Lansing City Marina Dike. The Friends of Pool 9 shall designate and maintain t…

the jurisdiction of the commission, in such a manner as to exceed the following noise levels: 37.7(1) Stationary sound level test. Motorboats manufactured prior to 1993 shall not exceed a noise level of 90dB(A) during a stationary sound level test as prescribed by 2018-06 Society…

Slough between a point 200 feet above the state ramp and 200 feet out from the west shore and extending 550 feet downstream from a point known as Sandy Point Road Dead-End shall operate at a speed not greater than 5 miles per hour. The city of Harpers Ferry will designate the 5-m…

traffic, shall be operated at a speed no greater than 5 miles per hour within an area extending 150 feet from shore and beginning at a point 1,012 feet north of Mississippi River Day Marker 624.7R and extending south to a point 1,012 feet south of the same marker (624.7R). The ci…

between the ice dike and Bussey Lake access shall be operated at a speed not greater than 5 miles per hour. The city will designate the 5-mile-per-hour speed zone with buoys approved by the commission. [ARC 9219C, IAB 5/14/25, effective 6/18/25]

a speed not greater than 5 miles per hour within the area of river mile markers 627 and 629.8, in a backwater known as Johnson Slough and designated by marker buoys approved by the commission. [ARC 9219C, IAB 5/14/25, effective 6/18/25]

traffic, shall be operated at a speed not greater than 5 miles per hour within the area of river mile markers 634.5 and 634.9 and designated by buoys or other approved uniform waterway markers. The city of Marquette will designate and maintain the 5-mile-per-hour speed zone with …

traffic, shall be operated at a speed not greater than 5 miles per hour within the area of river mile markers 634 and 633.4 and designated by buoys or other approved uniform waterway markers. The city of McGregor will designate the 5-mile-per-hour speed zone with buoys approved b…

portion of the Mississippi River within the city of Clinton, is hereby zoned to be a harbor area and vessels traveling therein shall not travel at speeds in excess of 5 miles per hour. [ARC 9219C, IAB 5/14/25, effective 6/18/25]

zone of not greater than 5 miles per hour is hereby established in all or part of the main channel of Swan Slough (Mississippi River mile 510.2 to 511.3), as designated by buoys. [ARC 9219C, IAB 5/14/25, effective 6/18/25] DES MOINES COUNTY…