When I was reviewing residency info on medschool.com I noticed a section on all residencies titled "AOA Status". For very competitive residencies this section stated "Highly recommended. Required for competitive programs." Non-competitive programs stated "Not essential for matching", and those in between stated "Recommended for competitive programs, but not essential for matching. Can anyone explain what "AOA Status" is? Does it have anything to do with DO students taking the USMLE in addition to the COMLEX? I haven't started DO school yet, and this will probably be explained during orientation week, but any info I could get now would be appreciated. Thanks..