CAF units/fax numbers and mailing addresses Ogden (OAMC) 1973 N. Rulon White Blvd. M/S 6737, Ogden, UT 84201 Fax: 855-214-7522 Memphis (MAMC) 5333 Getwell Rd Stop 8423, Memphis, TN 38118 Fax: 855-214-7519 Philadelphia (PAMC) International CAF MS 4.H14.123 2970 Market Street Philadelphia, PA 19104 Fax: 855-772-3156 Fax: 304-707-9785 Outside the United States (U.S.) Hint: States west of the Mississippi should submit authorizations to OAMC; states east of the Mississippi should submit authorizations to MAMC. The exceptions are: authorizations related to taxpayers residing abroad, are submitted to PAMC, and Arkansas and Louisiana submit authorizations to MAMC. Wisconsin authorizations are submitted to Ogden. State mapping of CAF units State OAMC CAF unit MAMC CAF unit Alabama X Alaska X Arizona X Arkansas X California X Colorado X Connecticut X Delaware X District of Columbia X Florida X Georgia X Hawaii X Idaho X Illinois X Indiana X Iowa X Kansas X Kentucky X Louisiana X Maine X Maryland X Massachusetts X Michigan X Minnesota X Mississippi X Missouri X Montana X Nebraska X Nevada X New Hampshire X New Jersey X New Mexico X New York X North Carolina X North Dakota X Ohio X Oklahoma X Oregon X Pennsylvania X Rhode Island X South Carolina X South Dakota X Tennessee X Texas X Utah X Vermont X Virginia X Washington X West Virginia X Wisconsin X Wyoming X Related The Centralized Authorization File (CAF) - Authorization rules Submit Forms 2848 and 8821 online
