S.C. Code Ann. § 31-3-1630

Notwithstanding any restrictions on investments contained in any laws of this State, the State and all public officers, municipal corporations, political subdivisions and public bodies, all banks, bankers, trust companies, savings banks and institutions, building and loan associations, savings and loan associations, investment companies and other persons carrying on a banking business, all insurance companies, insurance associations and other persons carrying on an insurance business and all executors, administrators, guardians, trustees and other fiduciaries may legally invest any sinking funds, moneys or other funds belonging to them or within their control in any bonds or other obligations issued by a housing authority pursuant to this chapter and Chapter 11 or issued by any public housing authority or agency in the United States when such bonds or other obligations are secured by a pledge of annual contributions to be paid by the United States Government or any agency thereof. Such bonds and other obligations shall be authorized security for all public deposits. But nothing contained in this section shall be construed as relieving any person from any duty of exercising reasonable care in selecting securities.