On Thursday to Friday, November 3-4, 2016, the Advisory Committee on Heritable Disorders in Newborns and Children (ACHDNC) met to consider Guanidinoacetate Methyltransferase (GAMT) deficiency for a full evidence review for addition to the Recommended Uniform Screening Panel (RUSP). In addition, the Committee heard updates on topics related to newborn screening and medical foods.