1. In every county whose population is 700,000 or more, the board of county commissioners is, and in counties whose population is less than 700,000 the board of county commissioners may be, ex officio the board of trustees of each district organized or reorganized pursuant to this chapter and authorized to exercise the basic power of furnishing facilities for sewerage as provided in NRS 318.140, without regard to whether the district is also authorized to furnish facilities for storm drainage, but excluding any district which is authorized, in addition to those basic powers, to exercise any one or more other basic powers designated in this chapter, except as otherwise provided in subsections 2, 4 and 5.

2. The board of county commissioners of any county may be, at its option, ex officio the board of trustees of any district organized or reorganized pursuant to this chapter and authorized to exercise the basic power of furnishing facilities for water as provided in NRS 318.144, or furnishing both facilities for water and facilities for sewerage as provided in NRS 318.144 and 318.140, respectively, without regard to whether the district is also authorized to furnish facilities for storm drainage, but excluding any district which:

(a) Is authorized, in addition to its basic powers, to exercise any one or more other basic powers designated in this chapter, except as otherwise provided in subsection 4.

(b) Is organized or reorganized pursuant to this chapter, the boundaries of which include all or a portion of any incorporated city or all or a portion of a district for water created by special law.

3. In every county whose population is less than 100,000, the board of county commissioners may be ex officio the board of trustees of each district organized or reorganized pursuant to this chapter and authorized to exercise the basic power of furnishing emergency medical services as provided in NRS 318.1185, which district may overlap the territory of any district authorized to exercise any one or more other basic powers designated in this chapter.

4. The board of county commissioners of any county may be, at its option, ex officio the board of trustees of any district organized on or after July 1, 2007, and authorized to exercise one or more of the basic powers designated in this chapter. In a county whose population is less than 100,000, a district for which the board of county commissioners is ex officio the board of trustees pursuant to this subsection and which is authorized only to exercise the basic power of furnishing streets and alleys as provided in NRS 318.120 may overlap the territory of any district authorized to exercise any one or more other basic powers designated in this chapter.

5. A board of county commissioners may exercise the options provided in subsections 1 to 4, inclusive, by providing in the ordinance creating the district or in an ordinance thereafter adopted at any time that the board is ex officio the board of trustees of the district. The board of county commissioners shall, in the former case, be the board of trustees of the district when the ordinance creating the district becomes effective, or in the latter case, become the board of the district 30 days after the effective date of the ordinance adopted after the creation of the district. In the latter case, within the 30-day period the county clerk shall promptly cause a copy of the ordinance to be:

(a) Filed in the clerk’s office;

(b) Transmitted to the secretary of the district; and

(c) Filed in the Office of the Secretary of State without the payment of any fee and otherwise in the same manner as articles of incorporation are required to be filed under chapter 78 of NRS.

(Added to NRS by 1967, 1691; A 1969, 1540; 1971, 1051; 1975, 541; 1977, 532, 929; 1979, 535; 1983, 1283; 1985, 1802; 1989, 1919; 2007, 1511; 2011, 1213)