Any resolution authorizing any securities under this article may contain a recital that they are issued pursuant to the provisions of this article, which recital shall be conclusive evidence that such securities have been duly authorized pursuant to the provisions of this article, notwithstanding the provisions of 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, in its discretion, cause to be published, once a week for two consecutive weeks, in a newspaper then published in the county in which the principal office of the authority is located, or, if there is no such 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 Act No. 82-418 enacted at the 1982 Regular Session of the legislature of Alabama. Any action or proceeding questioning the validity of the said securities, or the pledge [and any indenture] to secure the same, must be commenced within 20 days after the first publication of this notice.

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 said notice or to contest the validity of any such securities, the validity of any pledge made therefor or the validity of any indenture with respect thereto must be commenced within 20 days after the first publication of such notice. After the expiration of the said period, no right of action or defense questioning or attacking the validity of the said proceedings, the said securities, any pledge herein authorized, or such indenture shall be asserted, nor shall the validity of the said proceedings, securities, pledge or indenture be open to question in any court on any ground whatsoever except in an action commenced within said period.