Unlike the promotion processes for private through staff sergeant, unit commanders have little to do with the promotion process to the SNCO ranks. These promotions are centralized completely at the Headquarters of the Department of the Army (HQDA). There is no minimum time-in-grade (TIG) requ...
SFC Promotion Requirements: Primary Zone consideration starts to occur at around 35 months TIG as an E-6. Requirements for Secondary Zone — varies based on the needs of the Army but for 2010 required a minimum of 23 months TIG as an E-6. The Sergeant First Class board memorandum of ins...