• From Alstrom Point you can see Gunsight Butte, Padre Bay, and Navajo Mountain

    Glen Canyon

    National Recreation Area AZ,UT


Regarding the Personal Watercraft 2-stroke, 4-stroke engine issue:

This rule only applies to PWCs. Regular boats do not apply.

According to the Code of Federal Regulations Title 36, 7.70(e)(3): After December 31, 2012, no one may operate a PWC that does not meet the 2006 emission standards set by EPA for the manufacturing of two-stroke engines. A person operating a PWC that meets the EPA 2006 emission standards through the use of direct injection two-stroke or four-stroke engines, or the equivalent thereof, is not subject to this prohibition and will be allowed to operate as described in this section.

This rule is a part of the 2003 Record of Decision for the Environmental Impact Statement for PWC Rule-making in Glen Canyon National Recreation Area to reduce water and noise pollution.

There has been a ten year delay of implementation of this rule to allow PWC owners time to transition. The rule was announced in 2003 and became effective January 1, 2013.

What is a Personal Watercraft?

36 CFR §1.4 - Personal watercraft refers to a vessel, usually less than 16 feet in length, which uses an inboard, internal combustion engine powering a water jet pump as its primary source of propulsion. The vessel is intended to be operated by a person or persons sitting, standing or kneeling on the vessel, rather than within the confines of the hull.

The length is measured from end to end over the deck excluding sheer, meaning a straight line measurement of the overall length from the foremost part of the vessel to the aftermost part of the vessel, measured parallel to the centerline. Bow sprits, bumpkins, rudders, outboard motor brackets and similar fittings or attachments, are not included in the measurement. Length is stated in feet and inches.

Can I modify my engine?

The regulation requires a person operating a personal watercraft to meet the EPA 2006 emission standards through the use of direct-injection two-stroke or four-stroke engines, or the equivalent thereof.

I have an oil injected two stroke. Is that the same as a direct injection two stroke?

No. Oil injected two-strokes are still carbureted and require a fuel-oil mixture to enter the combustion chamber. Direct injection two strokes are not carbureted and fuel and oil are not mixed.

How do I know if my PWC is compliant?

Look at your engine. Engines that meet the regulation should have an emission control information label that clearly states that they conform to 2006 or later clean emissions standards.

The following information has been provided to Glen Canyon National Recreation Area by PWC manufacturers. If your vessel is not listed below and you do not know whether your vessel meets the 2006 EPA emission standards for two-stroke engines, please contact the engine manufacturer or servicing mechanic.

All Honda PWCs are compliant with the 2006 EPA emissions standards and therefore are permitted on Lake Powell.

All Yamaha models 2006 and later and the following Yamaha PWCs have an emission level compliant with 2006 EPA standards and are therefore permitted on Lake Powell.


Model Name



FX 1000C-B


FX 1000C-C








FX 1000D







All Kawasaki models 2006 and later and the following Kawasaki PWCs except the SX-R (stand-up) have an emission level compliant with 2006 EPA standards and are therefore permitted on Lake Powell.


Model Name





ULTRA 130-Di



ULTRA 130-Di




ULTRA 130-Di



ULTRA 130-Di






All BRP Sea-Doo models 2006 and later and the following BRP Sea-Doo PWCs have an emission level compliant with 2006 EPA standards and are therefore permitted on Lake Powell.


Model Name


GTX 947 DI

RX 947 DI LRV 947 DI GTX 4-TEC


GTX 947 DI

RX 947 DI

LRV 947 DI

XP 947 DI

GTX 4-TEC Super Charge

GTX 4-TEC Super Charge Limited

GTX 4-TEC Vans-Triple Crown


GTX 4-TEC Super Charge

GTX 4-TEC Super Charge Limited GTX 4-TEC Wake Board Edition GTX 4-TEC


GTX Wake


GTX Limited GTX

How will park rangers determine if my engine isn't compliant?

Park rangers will take into account operator knowledge, the model of the vessel, the engine type, and whether it's carbureted when determining compliance with the regulation. If you do not know whether your vessel meets the 2006 EPA emission standards for two-stroke engines, please contact your manufacturer or mechanic for this information.

Where Else Can I Take My PWC?

It is best to check with federal, state and local recreation managers for specific regulations prior to visiting a lake or river.

The following documents support the 2003 findings:

Record of Decision on the Final Environmental Impact Statement for Personal Watercraft Rule-Making: here.

Final Environmental Impact Statement for Personal Watercraft Rule-Making Vol 1: here (9.92Mb pdf - this document is over 400 pages).

Final Environmental Impact Statement for Personal Watercraft Rule-Making Vol 2: here (7.36Mb pfd - this document is 195 pages)

Night Boating: Not Recommended

For many years Glen Canyon National Recreation Area has maintained an Aids to Navigation (ATON) Program on Lake Powell. The ATON infrastructure includes red and green buoys, which mark the main river channel and indicate the safest routes for boat operators to navigate within. Given that lake levels fluctuate on a daily basis and during some years vary almost 100 vertical feet from winter to summer, the ATON program is not designed to mark hazards outside of these delineated areas, as they are ever changing. Therefore, the National Park Service does not recommend that boat operators attempt to navigate vessels before official sunrise or after sunset. Operators who choose to operate during these times are at an increased level of risk and subject themselves, fellow passengers and other boaters to accidents which can result in property damage, serious injury or death.

Boaters who find themselves in emergency situations, which may necessitate navigating at night, are reminded there are inherent risks associated and are encouraged to seriously weigh the benefit versus the risks involved. When operating they are strongly encouraged to utilize as many of the following tools as possible to help mitigate the risk involved: training and understanding of ATON, formal boating safety classes, topographic maps and technological devices. In addition to these tools, there is no substitute for area knowledge and experience obtained during day-light hours.

Boaters should keep in mind the National Park Service only initiates responses on Lake Powell between sunset and sunrise during emergency situations, which involve life safety.


New Firearms Regulations


To report disturbances, notify the National Park Service at visitor centers, ranger stations or marinas, or by dialing 1-800-227-7286.


Off Road Vehicle Use

Vehicles and bicycles are not permitted off -road at any location in the park, except for the designated ORV area at Lone Rock Beach. All vehicles must be licensed and street legal.


Lake Powell Pure - Now and Forever

It's the Law.

If you are camping within one quarter-mile of Lake Powell's shoreline, or more than 200 yards from a designated restroom facility, you are required to possess and utilize a human sanitation device (portable toilet) that does not use plastic bags to contain the waste. This waste may not be disposed of in the trash, but only at pumpout/dump stations located on the lake and at the marinas. As an alternative, you may use a commercial Waste Bag Containment System, that can be disposed of in the trash. Portable toilets and Waste Bag Systems are available at camping and fishing supply stores.

It doesn't work if you don't use it.

Some people may think that digging a hole in the sand behind a bush is good enough. However, the lake level fluctuates a great deal throughout the year, and the cat hole you dug months ago could be covered with water today, resulting in your human waste floating in the lake. So in order to keep Lake Powell Pure, having a portable toilet with you is not enough. It must be used. Before your trip to Lake Powell, learn the mechanics of your portable toilet and make sure everyone in your group uses it.

Don't dump your tank in the lake.

It is illegal to use a boat on Lake Powell that can discharge sewage overboard. If your boat has a Marine Sanitation Device capable of overboard sewage discharge, it must be completely disconnected from the discharge port, the holding tank must only be connected to a deck mounted pumpout fitting, and sewage holding tanks have all discharge outlets capped or plugged.

map showing floating comfort stations on Lake Powell
Map showing floating restooms/dump stations on Lake Powell.

Compliance is easy.

With eight floating restrooms/dump stations, and six areas within Lake Powell's marinas, you are never too far from a place to empty your portable toilet. If you and everyone else uses their portable toilet properly, you will never have to worry about a smelly camp, tripping over something nasty in the middle of the night, or swimming in contaminated waters.

Let us help.

Each week during the summer, National Park Service scientists use a state-of-the-art water laboratory to test for Esherichia coli (E. coli) bacteria from water collected at many beaches on Lake Powell. E. coli has been shown in numerous studies to be the best indicator of fecal pollution in water and can directly relate to the risk of human illness from recreation contact. In 2004, there were no E. coli counts high enough to close any of Lake Powell's beaches. It is through this cooperation of everyone who visits the lake that we can all celebrate this success, and continue to keep Lake Powell Pure.


If high counts of E. coli bacteria are found, beaches will be marked by bright yellow buoys and signs as closed until the levels return to normal.

Report illegal dumping by calling 928-608-6200.

Did You Know?