S.C. Code Ann. § 11-35-1830
(1) Contractor Certification. A contractor shall, except as provided in subsection (3) of this section, submit cost or pricing data and shall certify that, to the best of his knowledge and belief, the cost or pricing data submitted is accurate, complete, and current as of mutually determined specified date prior to the date of:
(3) Cost or Pricing Data Not Required. The requirements of this section shall not apply to contracts: