Pursuant to the authority granted by chapters 46.08 and 43.19 RCW, the director of the department of enterprise services hereby promulgates the following rules and regulations with respect to Capitol Lake and its adjoining lands and roadways.

For the purpose of these rules:

(1) "Boat" shall include any vehicle or device capable of being operated in the water;

(2) "Motorboat" shall include any vehicle, device, or boat which is in itself a self-propelled unit and whether or not machinery is the principal source of propulsion;

(3) "Operate" shall mean to navigate or otherwise use a boat or motorboat.

(4) "Public transportation vehicles" shall include any motor vehicle operated by the state, county, city, or other public agency.

The operation of all motorboats is prohibited in the area of Capitol Lake north of the railroad trestle crossing said lake unless prior written authorization is first obtained from the director of enterprise services.

Water skiing and the use of surfboards or other similar devices pulled behind a motorboat is prohibited on all areas of Capitol Lake unless prior written authorization is first obtained from the director of enterprise services.

All boats which shall be operated on Capitol Lake shall be launched only at designated launching sites approved by the director of enterprise services. If a motorboat is launched at any designated site north of the railroad trestle from which a motorboat is authorized to be launched, it shall proceed to the area wherein the operation of motorboats is permitted through designated approach channels only.

All boats operating on Capitol Lake shall be equipped and operated in conformity with all state, county, and municipal laws, ordinances and regulations which are pertinent thereto.

Nothing in these rules shall be so construed as to prevent the operation of any motorboat in any prohibited area if the sole means of propulsion used is by paddle, oar, or other manual means or solely by means of canvas or sail.

These rules and regulations will be enforced under the provisions of RCW 46.08.160 and 46.08.170 and violations will be punished pursuant thereto.

The effective date of these rules and regulations shall be when adopted pursuant to chapter 34.04 RCW and RCW 46.08.150.

The exhaust of every internal combustion engine used on any motorboat shall be muffled by an efficient muffling device or system which reasonably muffles the noise of the exhaust. The use of a cutout, bypass, or similar muffler elimination device, is prohibited, except when used by motorboats competing in a regatta, race, or other special event, or on trial runs and tuneups therefor, for which prior written authorization has first been obtained from the director of enterprise services.

No person shall operate any motorboat at any time on Capitol Lake at a rate of speed in excess of five miles per hour within a distance of fifty feet from the shore or from any float, dock, pier, or other similar installation bordering on or placed in Capitol Lake unless prior written authorization is first obtained from the director of enterprise services.

No person shall deposit or apply in any manner any algaecide, weedicide or pesticide in the waters of Capitol Lake or to the immediate shoreline thereof, without first obtaining the prior written approval of the director of enterprise services.