An electric-only lake lets you run an electric motor (a trolling motor or an electric outboard) but not a gas engine. Many of them still let you launch a boat that has a gas outboard, as long as the outboard stays tilted up and you run only the trolling motor. Others want the gas motor off the boat entirely. The posted rule for that lake decides which.
What "electric motors only" means
The rule bans internal-combustion engines: gas, diesel and propane. It doesn't ban motors. Any boat moved by an electric motor is allowed, from a kayak with a 30 lb trolling motor to a bass boat on a 36V bow-mount. Snohomish County, Washington puts it plainly on its boating page: "Since electric motors are not internal combustion engines, they are allowed." Electric outboards count too, as long as they fit within the lake's other limits.
Those other limits are where lakes differ. Common ones:
- Speed: Pennsylvania's Fish & Boat Commission and state park lakes allow electric motors at slow, no-wake speed only. Ohio's electric-only state park lakes also require no-wake speed.
- Horsepower: Lady Bird Lake in Austin allows electric motors up to 5 hp, and only from 5 a.m. to 10 p.m.
- Voltage: the Cambria Somerset Authority's reservoirs in Pennsylvania cap motor voltage at 24 volts.
- Thrust and batteries: Lake Carmel in Kent, New York requires a trolling-motor permit, a removable motor of no more than 55 lb thrust, and at most two sealed 12-volt marine batteries.
Why some lakes ban gas motors
- Drinking water. This is the most common reason we found. The Village of Florida, New York bans gas-motor boats from its reservoir "even if not being used," because "the potential for accidents is still a threat to our drinking water supply." Diascund Reservoir in James City County, Virginia is "a public drinking water supply area," and its rules follow from that.
- Invasive species and water quality. When New York City's water department tested trolling motors on Cannonsville Reservoir, it required steam-cleaned boats and motors no bigger than 55 lb thrust, because invasive species "can harm water quality, clog intake pipes."
- Small lakes. Missouri's conservation areas allow "only electric motors" on lakes and ponds of less than 70 acres. Electric and outboard motors are both allowed on lakes of 70 acres or more.
- Local ordinance. Dane County, Wisconsin's gas-free lakes "do NOT allow watercraft to use gas motors due to county and local ordinances."
Can you bring a boat with a gas outboard?
Often, yes. You run the trolling motor and leave the outboard alone. But lakes handle this three different ways, and the difference matters when you're backing down the ramp.
| Rule | What you do | Examples |
|---|---|---|
| Gas motor may stay on, but not run | Leave the outboard mounted, tilted up or out of the water, and use your electric motor only | Pennsylvania Fish & Boat Commission and state park lakes; Merrill Creek Reservoir, NJ |
| Gas motor may stay on, fuel must go | Tilt the outboard up and remove portable tanks, close fuel lines or bag the lower unit, as the lake requires | Diascund Reservoir, VA; Manasquan Reservoir, NJ; Snohomish County lakes, WA |
| No gas motors on board | Take the outboard off, or bring a boat without one | Village of Florida reservoir, NY; Lake Varner, GA; Cambria Somerset reservoirs, PA |
What the rules actually say:
- Pennsylvania (58 Pa. Code § 107.2): on Commission and state park lakes, "internal combustion motors attached to or installed in boats need not be removed," "but the operation of engines is specifically prohibited."
- Merrill Creek Reservoir, NJ: "NO gas-powered motor use at any time." Transom gas motors are "to be tipped up (PROPS OUT OF THE WATER) and kept up while on the water," unless the propeller is removed.
- Diascund Reservoir, VA: outboards may stay on the boat if the "motor must be out of the water," "portable fuel tanks must be removed from the boat," and "built-in fuel lines must have the shut-off valve in the closed position."
- Snohomish County, WA: "When motors cannot or are difficult to remove, gas cans must be removed, fuel lines disconnected, and the engine bagged."
- Lake Varner, GA: "No boat with a gasoline engine mounted on the transom is allowed on the reservoir."
Many lakes, including most we list from state regulations, don't say either way. The rule just says electric motors only. If you're towing a gas boat to one of those, call the managing agency first. In our lake finder, each lake shows a badge: "Gas boats OK, motor up," "No gas motors on board," or "Gas boats: check first."
One more thing about gas boats: on an electric-only lake, that outboard isn't your backup. If your battery runs down at the far end of the lake, you paddle or call for help. Size your battery for the whole day. Our guide to how much battery you need for an electric-only lake walks through it.
You still need to register the boat
A trolling motor usually makes a canoe, kayak or jon boat a motorboat in the eyes of the state, even on an electric-only lake. Here's what state agencies say, as of October 2026:
| State | Trolling-motor boat needs registration? | What the state says |
|---|---|---|
| Texas | Yes, plus a title | Adding "an outboard or trolling motor" to an exempt canoe or kayak "negates the exemption." |
| Wisconsin | Yes | Registration covers "all motorized vessels…including electric trolling motors." |
| Pennsylvania | Yes | Powered boats include those "powered by a gasoline, diesel or electric motor." Unpowered boats on PFBC and state park lakes need a registration or a launch permit. |
| New York | Yes | "If you use a motor (electric or fuel-driven), regardless of the size of your boat or the motor, you must register your boat." |
| California | Yes | Registration applies to any vessel "with a motor (no matter how big it is)." |
| Minnesota | Yes | "All motorized watercraft regardless of length" must be licensed. |
| Ohio | Yes | The state boating guide lists "POWERBOATS (Including electric motors)." |
| Michigan, Florida, Iowa | Effectively yes | Their exemptions cover only boats without a motor, or boats propelled by oars or paddles. |
Safety-equipment rules follow from that. Minnesota and Ohio both treat a trolling-motor boat as a motorboat, so you need a wearable life jacket for everyone aboard, plus a throwable on boats 16 feet and longer. Children under 10 must wear a life jacket while underway in both states, in Ohio on boats under 18 feet. Pennsylvania requires life jackets to be worn from November 1 through April 30 on boats under 16 feet and in all canoes and kayaks. Check your own state's boating guide.
A note on Florida
In 2025 Florida passed the "Florida Watercraft Energy Source Freedom Act" (s. 327.75), which bars state and local governments from restricting "the sale or use of watercraft based on the energy source used to power the watercraft." Florida Sea Grant's review of the law says existing energy-source zones "may very well be invalid," and that the full effect is still uncertain. Because of that, we don't list Florida lakes as electric-only. If you know a Florida lake that still enforces an electric-only rule, let us know.
Example: Lady Bird Lake, Austin
Lady Bird Lake, the reservoir on the Colorado River through downtown Austin, is one of the best-known electric-only lakes in Texas. Austin Parks and Recreation says, "Only watercraft powered by electric motors that do not exceed a capacity of five horsepower can operate on Lady Bird Lake." Austin Police Lake Patrol is blunter: "No use of gas powered motors are allowed on Lady Bird Lake, only trolling motors are permitted." Texas Parks and Wildlife's lake page agrees that "anglers may use electric trolling motors." Austin's city code (§ 8-5-82) also limits operation to 5 a.m. to 10 p.m. Gas boats are limited to city, permitted tour and event use, so leave the bass boat with the big outboard at home. A kayak or small boat with a trolling motor is a good fit.
How to find an electric-only lake
- Start with our electric-only lake finder. Filter by state, or show only lakes that allow a boat with a gas outboard kept up.
- Check your state wildlife agency's lake pages or regulation book. Ohio, Pennsylvania, Missouri, Arkansas and New Mexico all list electric-only waters in their rules.
- Look at city, county and water-district parks. Many drinking-water reservoirs allow trolling motors but not gas.
- Read the posted rules at the ramp, and call ahead if anything's unclear. Rules change, and a lake's own page beats any list, ours included.
FAQ
Can I use an electric outboard on an electric-only lake?
Usually, yes. The ban is on internal-combustion engines. Watch for horsepower, voltage or speed limits, like Lady Bird Lake's 5 hp limit or Pennsylvania's slow, no-wake rule.
Can I launch my bass boat if I don't start the outboard?
On some lakes, yes. Pennsylvania's Commission and state park lakes allow it, and Merrill Creek Reservoir requires the motor to be tipped up. Other lakes require the gas motor or its fuel to be removed, and some don't allow gas-motor boats at all. Check the lake's rule.
Do I need to register a kayak with a trolling motor?
In most states, yes. Texas, Wisconsin, Pennsylvania, New York, California, Minnesota and Ohio all say so, and Texas also requires a title.
Are lithium batteries allowed?
Most lakes don't regulate batteries. A few do, like Lake Carmel, NY, which allows at most two sealed 12-volt marine batteries per boat. If a lake limits battery type, voltage or count, ask the manager before you buy.
What happens if my battery dies?
You paddle, or wait for a tow. There's no gas motor to fall back on, so plan your battery for the full day with a reserve. Run your numbers in the runtime calculator.
Sources (checked October 2026): Snohomish County boating; 58 Pa. Code § 107.2; Ohio Adm. Code 1501:47-3-17; Austin Parks and Recreation, Lady Bird Lake; Austin Police Lake Patrol; TPWD, Lady Bird Lake; Austin City Code § 8-5-82 (unofficial copy); Cambria Somerset Authority; Town of Kent, Lake Carmel trolling motor flyer; Village of Florida, NY; Diascund Reservoir rules; NYC DEP; Missouri 3 CSR 10-11.160; Dane County Parks; Merrill Creek Reservoir; Lake Varner regulations; TPWD registration; Wisconsin DNR; PFBC registration; New York DMV; California DMV; Minnesota boating guide; Ohio boat operator's guide; PFBC legal requirements; Michigan SOS; FLHSMV; Iowa Code 462A.6; Florida Sea Grant.