S.C. Code Ann. § 59-29-80
(B) A student may be exempted from physical education requirements by seeking a waiver from the local school board of trustees. The local board may grant such a request based on the following criteria:
(2)
(b) the parent or student must be members of a recognized religious faith that objects to physical education as part of its official doctrine or creed.
The local board shall encourage the student to take, as an alternative to physical education, appropriate instruction in health education or other instruction in lifestyle modification if an exemption is granted pursuant to this section.