(a) No other agency in the County of San Diego may apply for grants for funding significant expansion activities, including, but not limited to, specific efforts to increase air capacity, unless the application is first approved by the authority as being consistent with the regional air transportation plan adopted by the authority.
(b) Unless action is taken pursuant to Section 170068, publicly owned airports in the County of San Diego, other than the San Diego International Airport, shall not be considered to be under the control of the authority for purposes of application for, or receipt of grants for, regular operational maintenance and upgrade projects adopted pursuant to Section 21670.3.