The Office of the Comptroller of the Currency (OCC) is adopting an interim final rule authorizing Federal savings associations and their operating subsidiaries to engage in off-exchange transactions in foreign currency with retail customers, subject to the requirements enumerated in the OCC's retail forex rule. The rule implements the provision of the Dodd-Frank Wall Street Reform and Consumer Protection Act requiring that these transactions be conducted by national banks and Federal savings associations (and their respective operating subsidiaries) only pursuant to an authorizing regulation issued by the OCC. It is substantively the same as the rule the OCC has adopted with respect to national banks and their operating subsidiaries.