Civil Aviation Order 20.18 (Aircraft equipment — basic operational requirements) Instrument 2014
9ECarriage of Mode S transponder equipment
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9E Carriage of Mode S transponder equipment
9E.1This subsection applies to an aircraft engaged in private, aerial work, charter or RPT operations.
9E.2Subject to paragraph 9E.3, an aircraft:
(a) that is:
(i) manufactured on or after 6 February 2014; or
(ii) modified by having its transponder installation replaced on or after 6 February 2014; and
(b) that is operated:
(i) in Class A, B, C or E airspace; or
(ii) above 10 000 feet above mean sea level in Class G airspace;
must carry:
(c) a serviceable Mode S transponder that meets the standards:
(i) for Mode S transponder equipment — in subsection 9C; and
(ii) for ADS-B transmission using an approved equipment configuration set out in Appendix XI — in a clause or clauses of Appendix XI as follows:
(A) clauses 2 and 5 of Part B; or
(B) clause 7 of Part C; or
(C) clause 8 of Part C; and
(iii) for ADS-B transmission using an approved equipment configuration set out in Appendix XII — in clauses 1 and 4 in Part B of Appendix XII; or
Note The requirement is for aircraft to be fitted with a Mode S transponder with ADS-B OUT capability. That does not mean that ADS-B OUT transmission is also required under this paragraph. It means that, with the later connection of compatible GNSS position source equipment, ADS-B OUT can be transmitted as well as Mode S SSR responses.
(d) for an aircraft that is operated under the VFR:
(i) in Class E airspace; or
(ii) above 10 000 feet AMSL in Class G airspace;
a serviceable integrated TABS device that meets the standards in Appendix XIII.
Note An aircraft operated under the VFR in Class E airspace or above 10 000 ft AMSL in Class G airspace has the option of complying with either subparagraph (c) or (d).
Note: An aircraft operated under the VFR or the IFR in Class A, B, or C airspace has no option but to comply with subparagraph (c).
Note: An aircraft operated under the IFR in Class E airspace or above 10 000 ft AMSL in Class G airspace has no option but to comply with subparagraph (c).
9E.3Paragraph 9E.2 does not apply to an aircraft:
(a) operating in Class E airspace; or
(b) operating above 10 000 feet above mean sea level in Class G airspace;
if the aircraft does not have:
(c) an engine; or