United States Army Field Manuals are published by the United States Army's Army Publishing Directorate. They contain detailed information and how-tos for procedures important to soldiers serving in the field. Starting in 2010, the US Army began review and revision of all of its doctrinal publications, under the initiative "Doctrine 2015". Since then, the most important doctrine have been published in Army Doctrine Publications (ADP) and Army Doctrine Reference Publications (ADRP), replacing the former key Field Manuals. Army Techniques Publications (ATP), Army Training Circulars (TC), and Army Technical Manuals (TM) round out the new suite of doctrinal publications. Not all FMs are being rescinded. 50 select Field Manuals will continue to be published, periodically reviewed and revised.