2. Neighborhood improvement districts may be created by a city or county only when approved by the vote of a percentage of electors voting thereon within such district, or by a petition signed by the owners of record of a percentage of real property located within such district, that is equal to the percentage of voter approval required for the issuance of general obligation bonds under article VI, section 26.
3. The total amount of city or county indebtedness for all such districts shall not exceed ten percent of the assessed valuation of all taxable tangible property, as shown by the last completed property assessment for state or local purposes, within the city or county.


