Marine Corps Reference Publication (MCRP) 6-12B, Religious Lay Leaders Handbook, provides guidance, techniques, and procedures for the Marine Corps' religious lay leader program. MCRP 6-12B sets forth command responsibilities and standards for religious lay leaders in the Marine Corps. It describes the administration and procedures for religious lay leaders in the conduct of their ministry. This publication provides the authoritative basis for how religious lay leaders are incorporated into command religious programs to assist in the provision of religious ministry support for the free exercise of religion for Marines and Sailors. MCRP 6-12B describes the role, function, and responsibilities of religious lay leaders in accordance with the principles of religious ministry support defined in Marine Corps Warfighting Publication (MCWP) 6-12, Religious Ministry Support in the U. S. Marine Corps.