Okla. Stat. tit. 70, § 70-9-114: Sale of units of equipment after lease for one year

The State Board of Education may sell any particular unit of

such pupil-transportation equipment to an eligible school district,

at any time after such unit has been leased for one (1) fiscal year,

for an amount not less than the original total cost of such unit

less rentals actually paid for the use of such unit; provided,

however, in so selling any such unit, preference shall be given to

the school district leasing such unit during the then preceding

fiscal year.