(1) In addition to the powers specified in section 32-1-1101, the board of a metropolitan district organized with street improvement, safety protection, or transportation powers as described in section 32-1-1004 (2)(d), (2)(f), (2)(h), and (5) has the power, for and on behalf of the district, to levy a uniform sales tax, at a rate determined by the board, upon every transaction or other incident with respect to which a sales tax is levied by the state that occurs within any area of the district that is not also within the boundaries of an incorporated municipality subject to the following limitations:

(a) The board may levy the tax only if the question of levying the tax is submitted to and approved by a majority of the registered electors of the portion of the district in which the tax is to be levied voting at a regular district election or at a special election held on the Tuesday after the first Monday of November in an even-numbered year or on the first Tuesday of November in an odd-numbered year in accordance with this article and section 20 of article X of the state constitution. The ballot issue shall provide that the tax to be levied shall be in addition to any other taxes levied by the district. The district shall pay all costs of the election, and no district moneys may be used to urge or oppose passage of the ballot issue submitted at the election.

(b) The net revenues of any sales or use tax levied may be used only to fund one or more of the following:

(I) Safety protection, as described in section 32-1-1004 (2)(d), in areas of the district in which the tax is to be levied;

(II) Street improvement, as described in section 32-1-1004 (2)(f), in areas of the district in which the tax is to be levied; or

(III) Transportation, as described in, and limited by the provisions of, section 32-1-1004 (2)(h) and (5).

(2) (a) The collection, administration, and enforcement of any sales tax levied by a metropolitan district pursuant to subsection (1) of this section shall be performed by the executive director of the department of revenue in the same manner as that for the collection, administration, and enforcement of the state sales tax levied pursuant to article 26 of title 39, C.R.S., including, without limitation, the retention by a vendor of the percentage of the amount remitted to cover the vendor's expense in the collection and remittance of the sales tax as provided in section 39-26-105, C.R.S. The executive director shall make monthly distributions of sales tax collections to the district. The district shall pay the net incremental cost incurred by the department in the administration and collection of the sales tax.

(b)

(I) A qualified purchaser may provide a direct payment permit number issued pursuant to section 39-26-103.5, C.R.S., to a vendor or retailer that is liable and responsible for collecting and remitting any sales tax levied on a sale made to the qualified purchaser pursuant to the provisions of this article. A vendor or retailer that has received a direct payment permit number in good faith from a qualified purchaser shall not be liable or responsible for collection and remittance of any sales tax levied on a sale that is paid for directly from the qualified purchaser's funds and not the personal funds of an individual.

(II) A qualified purchaser that provides a direct payment permit number to a vendor or retailer shall be liable and responsible for the amount of sales tax levied on a sale made to the qualified purchaser pursuant to the provisions of this article in the same manner as liability would be levied on a qualified purchaser for state sales tax pursuant to section 39-26-105 (3), C.R.S.

(3) Revenues raised by a metropolitan district through the levy of a sales tax pursuant to subsection (1) of this section shall be in addition to and shall not be used to supplant any state funding that the district or any county, municipality, regional transportation authority, or other governmental entity that has transportation-related powers and that includes territory located within the district would otherwise be entitled to receive from the state or any other local government, including, but not limited to, any existing or budgeted department of transportation funding of any portion of the state highway system within the territory of the authority.