S.C. Code Ann. § 3-1-150

(A)(1) Whenever a duly authorized official or agent of the United States, acting pursuant to authority conferred by the Congress, notifies the State Fiscal Accountability Authority or any other State official, department or agency, that the United States desires or is willing to relinquish to the State the jurisdiction, or a portion thereof, held by the United States over the lands designated in such notice, the State Fiscal Accountability Authority may, in its discretion, accept such relinquishment. Such acceptance may be made by sending a notice of acceptance to the official or agent designated by the United States to receive such notice of acceptance. The State Fiscal Accountability Authority shall send a signed copy of the notice of acceptance, together with the notice of relinquishment received from the United States, to the Secretary of State, who shall maintain a permanent file of the notices. (2) Upon the sending of the notice of acceptance to the designated official or agent of the United States, the State shall immediately have such jurisdiction over the lands designated in the notice of relinquishment as the notice shall specify. (3) The provisions of this subsection shall apply to the relinquishment of jurisdiction acquired by the United States under the provisions of Sections 3-1-110 and 3-1-120. (B)(1) Notwithstanding any other provision of this title, the State shall exercise concurrent jurisdiction with the United States over any military installation of the United States Department of Defense located or established within the State in the matter relating to a violation of federal law by a juvenile within the boundaries of that military installation if: (a) the United States Attorney, or the United States District Court, for the applicable district in South Carolina, waives exclusive jurisdiction; and (b) the violation of federal law is also a crime or infraction under state law. (2) The provisions of this subsection shall apply to the relinquishment of jurisdiction acquired by the United States under the provisions of Sections 3-1-110, 3-1-120, and the specific grants the United States outlined in Chapter 3 of this title. (C) Upon the establishment of concurrent jurisdiction, any state or local agency may enter into a reciprocal agreement with any agency of the United States for coordination and designation of responsibilities related to the concurrent jurisdiction. Effect of Amendment 2025 Act No. 54, SECTION 1, designated the three previously undesignated paragraphs as (A)(1) to (A)(3); added (B) to (C); and made a nonsubstantive change.