303.Section 98 amends section 66 of the TA 2000 so as to replace the Secretary of State's power to nominate a member to perform certain of the CAA's air navigation functions with a duty for the chief executive of the CAA to consult the Secretary of State before nominating, with the approval of the chair and at least one other non-executive member, another executive member to perform such of the CAA's air navigation functions as the Secretary of State may specify. It also amends section 67 of the TA 2000 to ensure that the Secretary of State may only nominate a non-executive member to perform the national security functions in section 67.