(1) A local district may be authorized by the educational service district superintendent to transport and educate its pupils in other districts for one year, either by payment of a compensation agreed upon by such school districts, or under other terms mutually satisfactory to the districts concerned when this will afford better educational facilities for the pupils and when a saving may be effected in the cost of education. Notwithstanding any other provision of law, the amount to be paid by the state to the resident school district for apportionment purposes and otherwise payable pursuant to RCW
28A.150.250 through
28A.150.290,
28A.150.350 through
28A.150.410,
28A.160.150 through
28A.160.200,
28A.300.035, and
28A.300.170 shall not be greater than the regular apportionment for each high school student of the receiving district. Such authorization may be extended for an additional year at the discretion of the educational service district superintendent.
(2) Subsection (1) of this section shall not apply to districts participating in a cooperative project established under RCW
28A.340.030 which exceeds two years in duration or to nonhigh school districts participating in an interdistrict cooperative under RCW
28A.340.080 through
28A.340.090.