16 U.S. Code § 423g - Rules and regulations
The Secretary of the Interior, subject to the approval of the President, shall have the power to make and shall make all needful rules and regulations for the care of the battlefield, and for the establishment and marking of lines of battle and other historical features of the battlefield.
“Battlefield” substituted in text for “park” in view of redesignation of Petersburg National Military Park as Petersburg National Military Battlefield by Pub. L. 87–603. See section 423h–1 of this title.
Transfer of administrative functions of park, see note set out under section 423 of this title.