(a) Any resolution authorizing any securities under this chapter may contain a recital that they are issued pursuant to this chapter, which recital shall be conclusive evidence that the securities have been duly authorized pursuant to this chapter, notwithstanding any other law now in force or hereafter enacted or amended. Upon the adoption by the board of any resolution providing for the issuance of securities, the authority may cause to be published once a week for two consecutive weeks in a newspaper published in the county in which the principal office of the authority is located, or, if there is no newspaper, then in a daily newspaper published in the state, a notice in substantially the following form, with any appropriate changes, to the extent applicable and with the blanks being properly filled in:
" ______________________, a public corporation and instrumentality under the laws of the State of Alabama, has authorized the issuance of $ _____ principal amount of securities of the said authority to be dated _____ for purposes authorized in Chapter 101A of Title 11 of the Code of Alabama 1975. Any action or proceeding questioning the validity of the securities, or the pledge [and any indenture] to secure the same, must be commenced within 20 days after the first publication of this notice.
"By [here insert name of the authority]
"Chair of its Board of Directors"
(b) Any action or proceeding in any court to set aside or question the validity of the proceedings for the issuance of the securities referred to in the notice or to contest the validity of any securities, the validity of any pledge made therefor, or the validity of any indenture with respect thereto shall be commenced within 20 days after the first publication of the notice. After the expiration of that period, no right of action or defense questioning or attacking the validity of the proceedings, the securities, any pledge herein authorized, or any indenture shall be asserted, nor shall the validity of the proceedings, securities, pledge, or indenture be open to question in any court on any ground whatsoever except in an action commenced within that period.