Ohio Rev. Code Ann. § 1309.409
(A) A term in a letter of credit or a rule of law, statute, regulation, custom, or practice applicable to the letter of credit that prohibits, restricts, or requires the consent of an applicant, issuer, or nominated person to a beneficiary's assignment of or creation of a security interest in a letter-of-credit right is not effective to the extent that the term or rule or law, statute, regulation, custom, or practice:
(B) To the extent that a term in a letter of credit is not effective under division (A) of this section but would be effective under law other than this chapter or under a custom or practice applicable to the letter of credit, to the transfer of a right to draw or otherwise demand performance under the letter of credit, or to the assignment of a right to proceeds of the letter of credit, the creation, attachment, or perfection of a security interest in the letter-of-credit right: