1.  The ordinance or ordinances, or the resolution or resolutions, providing for the issuance of any bonds or other securities issued under this chapter payable from the receipts from the fuel excise taxes designated in this chapter may at the discretion of the board or, in the case of bonds or other securities issued by a commission, the commission, in addition to covenants and other provisions authorized in the Local Government Securities Law, contain covenants or other provisions as to the pledge of and the creation of a lien upon the receipts of the taxes collected for the county pursuant to the provisions of NRS 373.030 or 373.062, paragraph (d) of subsection 1 of NRS 373.065, paragraphs (d) to (m), inclusive, of subsection 1 of NRS 373.066 and paragraphs (d) to (m), inclusive, of subsection 1 of NRS 373.0663, excluding any tax proceeds to be distributed directly under the provisions of NRS 373.150, or the proceeds of the bonds or other securities pending their application to defray the cost of the project, or both such tax proceeds and security proceeds, to secure the payment of revenue bonds or other securities issued under this chapter.

2.  If the board or, in the case of bonds or other securities issued by a commission, the commission, determines in any ordinance or resolution authorizing the issuance of any bonds or other securities under this chapter that the proceeds of the taxes levied and collected pursuant to the provisions of NRS 373.030 or 373.062, paragraph (d) of subsection 1 of NRS 373.065, paragraphs (d) to (m), inclusive, of subsection 1 of NRS 373.066 and paragraphs (d) to (m), inclusive, of subsection 1 of NRS 373.0663 are sufficient to pay all bonds and securities, including the proposed issue, from the proceeds thereof, the board or, in the case of bonds or other securities issued by a commission, the commission with the consent of the board as provided in subsection 6 of NRS 373.131, may additionally secure the payment of any bonds or other securities issued pursuant to the ordinance or resolution under this chapter by a pledge of and the creation of a lien upon not only the proceeds of any fuel tax authorized at the time of the issuance of such securities to be used for such payment in subsection 6 of NRS 373.131, but also the proceeds of any such tax thereafter authorized to be used or pledged, or used and pledged, for the payment of such securities, whether such tax be levied or collected by the county, the State of Nevada, or otherwise, or be levied in at least an equivalent value in lieu of any such tax existing at the time of the issuance of such securities or be levied in supplementation thereof.

3.  The pledges and liens authorized by subsections 1 and 2 extend to the proceeds of any tax collected for use by the county on any fuel so long as any bonds or other securities issued under this chapter remain outstanding and are not limited to any type or types of fuel in use when the bonds or other securities are issued.