0817. Observance of Sunday
1. Except by reason of necessity or in the interest of the welfare and morale of the command, the performance of work shall not be required on Sunday. Except by reason of necessity, ships shall not be sailed nor units of aircraft or troops be deployed on Sunday. The provisions of this paragraph need not apply to commands engaged in training reserve components of the Navy and Marine Corps.
2. Divine services shall be conducted on Sunday if possible. All assistance and encouragement shall be given to chaplains in the conduct of these services, and music shall be made available, if practicable. Chaplains shall be permitted to conduct public worship according to the manner and forms of the church of which they are members. A suitable space shall be designated and properly rigged for the occasion, and quiet shall be maintained throughout the vicinity during divine services. The religious preferences and the varying religious needs of individuals shall be recognized, respected, encouraged and ministered to as practicable. Daily routine in ships and activities shall be modified on Sunday, as practicable to achieve this end.
3. When there is no chaplain attached to the command, the commanding officer shall engaged the services of any naval or military chaplain who may be available; or, failing in this, shall, when practicable, invite and may remunerate a civilian clergyman to conduct religious services. Services led by laypersons are encouraged. Provision shall be made for sending and receiving church parties as appropriate and practicable.