Lake Zoar Authority | Ensuring Water Quality and Boat Safety
The Lake Zoar Authority is a multi-town organization consisting of representatives from the four towns that border the lake - Monroe, Newtown, Oxford, and Southbury. The Lake Zoar Authority is tasked with the goals of improving water quality and promoting safe boating on the lake.
Lake Zoar Authority, Lake Zoar, CT, Connecticut, Newtown, Southbury, Oxford, Monroe
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Vessel Registration
Vessel Registration
All vessels must be registered with the Department of Motor Vehicles (DMV).
Evidence of ownership must be submitted at the time of registration. Upon receipt of the application and fee, an identification number will be assigned and a certificate of number/registration will be issued along with two validation decals. The registration will be valid until April 30 of the following year. Connecticut vessel numbers stay with the boat as long as it is registered in the state.



Personal Flotation Device
Personal Flotation Device
PFD- regulations and specifications



Speed Limit on Lake Zoar
Speed Limit on Lake Zoar
There is a daytime speed limit of 45 mph.
(72 km/h or 39 knots)
30 minutes after sunset to 30 minutes before sunrise speed limit is 25 mph.
(40 km/h or 22 knots )


icon_info-Jetski¬†Personal Watercraft¬†Nighttime Operation is Prohibited–The law prohibits the operation of a personal watercraft at any time between the hours from one-half hour after sunset to one-half hour before sunrise.


  • Personal Watercraft Thefts

    Recently several thefts of personal water crafts have been reported on Lake Zoar. Please read the attached article for some important tips on how to prevent yours from being stolen.   Anyone who has ever had a personal watercraft stolen knows there is nothing quite......

  • Zoar Lake Treatment Notice

    Update 8/9/19: Due to flowage in the river because of storms, treatment will be Monday   NOTIFICATION OF AQUATIC TREATMENT SCHEDULING LAKE ZOAR MONROE, NEWTOWN, OXFORD, SOUTHBURY   In accordance with CT DEEP, Pesticide Division notification requirements, selected areas of Lake Zoar will be...