Washington Revised Code Title 47. Public Highways and Transportation § 47.26.270. Matching funds requirements

Counties, cities, towns, and transportation benefit districts receiving funds from the board shall provide such matching funds as established by rules adopted by the transportation improvement board. When determining matching requirements, the board shall consider (1) financial resources available to counties and cities to meet arterial needs, (2) the amounts and percentages of funds available for road or street construction traditionally expended by counties and cities on arterials, (3) in the case of counties, the relative needs of arterials lying outside urban areas, and (4) the requirements necessary to avoid diversion of funds traditionally expended for arterial construction to other street or road purposes or to nonhighway purposes.