GRDA Police

The Grand River Dam Authority Police office is located in the GRDA Ecosystems & Education Center located on the west end of Pensacola Dam in Langley, OK. It is the central point of dispatch for GRDA’s police force which is responsible for the safety of people enjoying the recreational opportunities on all GRDA waters. The police are also responsible for the enforcement of GRDA lake regulations.


PO Box 70
Langley OK 74350

GRDA Police Update

Lake Rules and Regulations

This is a guide to answer frequently asked questions concerning lake rules. Complete rules and regulations in PDF format GRDA Lake Rules 2017. Lake rules are also available at GRDA’s Lake Patrol office and most marinas.

Boating Laws

Duck Creek Rules

Life Jacket Brochure

Safety First Around Our Dams

Rule Impact Statement

Off-Road Regulations for GRDA Properties

All relevant Oklahoma laws, as well as the GRDA Lake Rules and Regulations, apply to all GRDA lakes. Failure to comply with these may be a criminal offense.

All vessels must have Oklahoma registration and license by June 30 each year. Boats currently registered in another state may be used on these lakes for a 60-day period without registering them. If the boat remains in Oklahoma for more than 60 calendar days, it must be registered in Oklahoma. Registration stickers must be displayed on the front port and starboard portion of the vessel.

All boats kept or operated on GRDA lakes shall be inspected by GRDA’s Police. A safety inspection sticker shall be placed on the port front portion of boat. This is a free inspection.


Vessel Safety Check Program

The Grand Lake Sail & Power Squadron has a Vessel Safety Check Program offering free boat inspections for the Grand Lake area. For more information visit their web site or call 1-918-786-4830.