A variety of Washington State agencies provide grants for boating facilities, education programs, and other activities. Below is a list of some of the grants available.

Pump-out Grant Program (any recreational boat)
http://www.parks.wa.gov/boating/pumpout/?subject=grants
Granting agency: Washington State Parks and Recreation Commission, Boating Programs Office
This program funds the construction, renovation, operation, and maintenance of pumpout and dump stations for use by recreational boaters. The program reimburses grant recipients for up to 75 percent of the cost of installing such stations. The funds are made available to public and private sector facilities.

Boating Facilities Grant Program (small power boats, 26 feet and smaller)
http://www.rco.wa.gov/rcfb/grants/bfp.htm
Granting agency: Washington State Recreation and Conservation Funding Board
This biennial state program funds acquisition, development, and renovation of boating facilities including launching ramps, guest moorage, and support facilities on both freshwater and saltwater. Municipalities, ports, parks, school districts, state agencies, and tribes may apply. Fact sheet:  http://www.rco.wa.gov/documents/rco/fact_sheets/BFP_fact_sheet.pdf

Boating Infrastructure Grant Program (large power boats, 26 feet and larger)
http://www.rco.wa.gov/rcfb/grants/big.htm
Granting agency: Washington State Recreation and Conservation Funding Board
This program provides funding for guest boating facilities that serve recreational boats 26 feet and larger. Counties, cities, ports, tribes, private marinas with public facilities, and nonprofit organizations may apply. Fact sheet:  http://www.rco.wa.gov/documents/rco/fact_sheets/BIG_fact_sheet.pdf

Land and Water Conservation Fund (any recreational boat)
http://www.rco.wa.gov/rcfb/grants/lwcf.htm
Granting agency: Washington State Recreation and Conservation Funding Board
This program provides funding to buy land and develop outdoor recreation resources: parks, trails, wildlife lands, and other facilities. Counties, cities, towns, ports, tribes, and state agencies may apply. Fact sheet:  http://www.rco.wa.gov/documents/rcfb/Grants/LWCF/LWCF_fact_sheet.pdf

Aquatic Lands Enhancement Account
http://www.rco.wa.gov/rcfb/grants/alea.htm
This program provides grants for the purchase, improvement, or protection of aquatic lands for public purposes, and for providing and improving access to such lands. Priorities of this program include re-establishing naturally self-sustaining functions related to aquatic lands; providing or restoring public access to the water; and increasing public awareness of aquatic lands. Any division of local or state government, as well as tribes are eligible to apply. Fact sheet:  http://www.rco.wa.gov/documents/rco/fact_sheets/ALEA_fact_sheet.pdf

Washington Wildlife and Recreation Program (any recreational boat)
http://www.rco.wa.gov/rcfb/grants/wwrp.htm
This program provides funding for parks, water access sites, trails, wildlife habitat, and farmland preservation. Cities, counties, ports, parks and school districts as well as state agencies and tribes may apply. Fact sheet:  http://www.rco.wa.gov/documents/rco/fact_sheets/WWRP_fact_sheet.pdf