S.C. Code Ann. 40-80-70
License Exemption: Firefighter During State of Emergency
When an emergency declaration is in effect, a firefighter does not need to be registered with the Office of the State Fire Marshal and does not need to complete a criminal background check to perform firefighting duties.
State of emergency exception
Notwithstanding another provision of law, the provisions contained in this chapter do not apply to individuals engaged in firefighting duties during a declared state of emergency.