N.C. Gen. Stat. § 90A-62

The Board may, without examination, grant a certificate as a registered environmental health specialist to any person who at the time of application, is registered as a registered environmental health specialist by a similar board of another state, district or territory whose standards are determined to be acceptable to the Board and comply with rules adopted by the Board. A fee to be determined by the Board and not to exceed one hundred dollars ($100.00) shall be paid by the applicant to the Board for the issuance of a certificate under the provisions of this section.