There have been recent changes to the Social Security rules which now expand the list of “acceptable medical sources” to include advanced practice registered nurses (APRNs), licensed audiologists, licensed optometrists and physician’s assistant. Additionally, the rules have changed so that no longer are treating physician’s opinions given controlling weight as compared to non-treating medical sources. This new rule affords the Administrative Law Judges more deference to weigh evidence as they see fit. Consequently, the opinions of a treating physician are no longer given controlling weight but rather are considered with all other medical information for purposes of the Judge’s decision. These rules take effect on all claims filed after March 27, 2017.