substitute
(a) the person is—
(i) at least 16 years old; or
(ii) at least 12 years old, but not yet 16 years old and—
(A) the parents of the young person consent to the application; or
(B) if it is not practicable or reasonable to obtain the consent of both parents—1 parent consents to the application; or
(C) if a circumstance prescribed by regulation applies—a stated person with parental responsibility for the young person consents to the application; or
(iii) not yet 16 years old and the ACAT has granted leave under part 4A (ACAT leave for certain applications) for the young person to apply; and