(a) Whenever a board of directors determines that it is necessary to incur a general obligation bond indebtedness for the acquisition or improvement of real property, the board of directors may proceed pursuant to Article 11 (commencing with Section 5790) of Chapter 4 of Division 5 of the Public Resources Code.
(b) Notwithstanding subdivision (a), a district shall not incur bonded indebtedness pursuant to this section that exceeds 15 percent of the assessed value of all taxable property in the district at the time that the bonds are issued.