Okla. Stat. tit. 12A, § 12A-2A-509: Lessee's rights on improper delivery; rightful

rejection.

LESSEE'S RIGHTS ON IMPROPER DELIVERY; RIGHTFUL REJECTION

(1) Subject to the provisions of Section 58 of this act, a

lessee, on default in installment lease contracts, if the goods or

the tender or delivery fail in any respect to conform to the lease

contract, the lessee may reject or accept the goods or accept any

commercial unit or units and reject the rest of the goods.

(2) Rejection of goods is ineffective unless it is within a

reasonable time after tender or delivery of the goods and the lessee

seasonably notifies the lessor.