S.C. Code Ann. § 25-1-1440

The Adjutant General's Office shall expend from appropriated money each year any necessary and reasonable expenses associated with the maintenance and care of the Adjutant General's caisson. The Adjutant General may make its caisson available for the funeral of dignitaries and military-oriented activities and events. The Adjutant General may accept donations for the expenses associated with maintenance and care of the caisson. Excess money from donations may be carried forward each fiscal year by the Adjutant General to be used strictly for future costs associated with the maintenance and care of the caisson.