19. —(1) A person appointed by Aer Rianta under section 48(1) of the Act of 1998 as an authorised officer or under section 51 of the Act of 1998 as an authorised person who holds office as such officer or person immediately before the relevant appointed day continues, subject to section 12 , as an authorised officer or person, as the case may be, for the relevant State airport where on that day he or she carries out his or her duties as an authorised officer or person, as the case may be.

(2) For the avoidance of doubt, section 1(3) of the Act of 1998 does not apply to this Part.