(1) For paragraph 98(5A)(a) of the Act, CASA may, by legislative instrument, prescribe:
(a) for a type of aircraft that is certificated for single-pilot operation--whether a single-pilot type rating is required; and
(b) for aircraft for which single-pilot type ratings are required:
(i) the type ratings that may be granted for single-pilot operation; and
(ii) the aircraft models that are variants of each other; and
(iii) in relation to each variant--the variants for which differences training is required; and
(c) the type ratings for which the flight review or instrument proficiency check requirements may be met by completion of a single flight review; and
(d) the type ratings for which the instrument proficiency check requirements may be met by completion of a single instrument proficiency check.
(2) However, CASA may prescribe that a single-pilot type rating is required for an aircraft only if satisfied that:
(a) the complexity of the aircraft's systems; or
(b) its performance or handling characteristics;
requires the provision of additional flight training to enable a person to pilot an aircraft of that type safely.