Okla. Stat. tit. 12A, § 12A-4-106: Payable through or Payable at Bank; Collecting Bank

PAYABLE THROUGH OR PAYABLE AT BANK; COLLECTING BANK

(a) If an item states that it is "payable through" a bank

identified in the item, (i) the item designates the bank as a

collecting bank and does not by itself authorize the bank to pay the

item, and (ii) the item may be presented for payment only by or

through the bank.

(b) If an item states that it is "payable at" a bank identified

in the item, (i) the item designates the bank as a collecting bank

and does not by itself authorize the bank to pay the item, and (ii)

the item may be presented for payment only by or through the bank.

(c) If a draft names a nonbank drawee and it is unclear whether

a bank named in the draft is a co-drawee or a collecting bank, the

bank is a collecting bank.