shall be allocated by law among and within not more than fifteen principal departments so as to group them so far as practicable according to major purposes. Regulatory, quasi-judicial and temporary agencies need not be a part of a principal department. The functions and duties of the principal departments and of other agencies of the Commonwealth shall be provided by law. The legislature may reallocate offices, agencies and instrumentalities among the principal departments and may change their functions and duties. The governor may make changes in the allocation of offices, agencies and instrumentalities and in their functions and duties that are necessary for efficient administration. If these changes affect existing law, they shall be set forth in executive orders which shall be submitted to the legislature and shallbecome effective sixty days after submission, unless specifically modified or disapproved by a majority of the members of each house of the legislature.

Section 16: Civil Service. [Repealed.]

Section 17: Public Services.

a) The governor shall delegate to a mayor elected under the provisions of Article VI, Section 2, responsibility for the execution of Commonwealth laws as deemed appropriate, and the administration of public services in the island or islands in which the mayor has been elected. Services being provided on a decentralized basis in Rota, and Tinian and Aguiguan, on the effective date of this provision shall continue. In furtherance of this section, the mayor shall have the responsibility for ensuring that the resident department heads faithfully execute their duties under the law and in accordance with the policies of