The superintendent shall establish within each division such “bureaus” as he deems necessary to carry out the provisions of the Regulation and Licensing Department Act. He shall appoint a “chief” to be the administrative head of any such bureau. The positions so appointed may be exempted from the Personnel Act [N.M. Stat. Ann. Chapter 10, Article 9] by action of the superintendent, except for the construction industries division trade bureaus created pursuant to Section 60-13-31 N.M. Stat. Ann.. The chiefs of those bureaus shall be covered positions under the Personnel Act.