The department may disburse matching grants from funds provided by the legislature from the air pollution control account, created in RCW
70A.15.1010, to units of local government to partially offset the additional cost of purchasing "clean fuel" and/or operating "clean-fuel vehicles" provided that such vehicles are used for public transit. Publicly owned school buses are considered public transit for the purposes of this section. The department may also disburse grants to vocational-technical institutes for the purpose of establishing programs to certify clean-fuel vehicle mechanics. The department may also distribute grants to Washington State University for the purpose of furthering the establishment of clean fuel refueling infrastructure.