(a) If the territory in a district created under this chapter overlaps with the boundaries of another district created under this chapter, the most recently created district may not provide services in the overlapping territory that duplicate the services described in the statement required by § 775.018(g).
(b) If the territory in more than two districts overlaps, the commissioners court of the county in which the most recently created district is located by order shall exclude the overlapping territory from that district.

(c) For purposes of this section, a district is created on the date on which the election approving its creation was held. If the elections approving the creation of two or more districts are held on the same date, the most recently created district is the district for which the hearing regarding approval of the petition for creation of the district was most recently held.
(d) The creation of a district with boundaries that overlap the boundaries of another district does not affect the validity of either district.
(d-1) The legislature finds that the performance of non-duplicative emergency services in the overlapping territory of emergency service districts is complementary to and not in conflict with the powers and duties of the respective districts.
(d-2) A person may serve as an emergency services commissioner of a district created under this chapter at the same time that the person serves as an emergency services commissioner of another district with overlapping territory created under this chapter.
(d-3) A person serving as a commissioner of more than one district under this section:
(1) may receive compensation for serving on only one board; and
(2) is entitled to reimbursement for reasonable and necessary expenses incurred in performing official duties for both boards.
(e) This section does not apply to a district located wholly in a county with a population of more than three million.