27 The spouses and relatives by consanguinity or affinity within the fourth civil degree respectively of the Regional Governor, the Regional Vice Governor, the members of the cabinet, or their deputies shall not, during their tenure, be appointed members of the regional cabinet or chairmen of regional commissions or heads of bureaus or offices, including government-owned or -controlled corporations and their subsidiaries located in the autonomous region. SEC. 17. Appointments by Acting Regional Governor. – Appointments extended by the acting Regional Governor before the assumption of office by the elected Regional Governor shall remain effective, unless revoked by the elected Regional Governor within ninety (90) days from his or her assumption of office. SEC. 18. The Regional Governor shall not issue appointments, remove personnel, or, unless authorized by the Commission on Elections, undertake public works projects, within the prohibited period before and after a regional election as provided by law. SEC. 19. Appointments by Regional Governor. – The Regional Governor shall appoint, in addition to the members of the cabinet and their deputies, the chairmen and members of the commissions and the heads of bureaus of the Regional Government, and those whom he may be authorized by this Organic Act, or by regional law to appoint. The Regional Assembly may, by law, vest the appointment of other officers or officials lower in rank on the heads of departments, agencies, commissions, or boards. The powers, functions, responsibilities, and structure of the departments, agencies, bureaus, offices, and instrumentalities of the Regional Government including the corporations owned or controlled by the Regional Government shall be prescribed and defined by the Regional Assembly. SEC. 20. Power of Regional Governor Over Commissions, Agencies, Boards, Bureaus and Offices. – Subject to the exceptions provided for in this Organic Act, the Regional Governor shall have control of all the regional executive commissions, agencies,