This is a standard RPMS data dictionary, maintained in the AUT package. Changes to this data dictionary must be submitted to the RPMS DBA. The Provider Taxonomy Code List is published (released) twice a year on July 1st and January 1st. The July publication is effective for use on October 1st and the January publication is effective for use on April 1st. The time between the publication release and the effective date is considered an implementation period to allow providers, payers and vendors an opportunity to incorporate any changes into their systems. This listing includes Active codes approved for use effective April 1st, 2003, version 3.0; and codes that are New and approved for use effective October 1st, 2003, version 3.1 This file is introduced in patch AUT*98.1*13