The All In Policy applies to the Main Residency Match® and some Fellowship Matches participating in the Specialties Matching Service®. The All In Policy requires any program in these participating Matches to register and attempt to fill all of its positions through the Match or another national matching plan. A “program” is defined by its ACGME® number. The Policy does not require programs to include all positions for which they are accredited, just those they wish to fill for a given training year. Learn more about the All In Policy.