Miss. Code Ann. § 31-3-15: Miss. Code Ann. § 31-3-15

No contract for public or private projects shall be issued or awarded to any contractor who did not have a current certificate of responsibility issued by said board at the time of the submission of the bid, or a similar certificate issued by a similar board of another state which recognizes certificates issued by said board. Any contract issued or awarded in violation of this section shall be null and void.