JAR 23

Part 23 regulation is not required for JAR-23, this is so stated. (See paragraph 2.3.)
2 Presentation
2.1 The requirements of JAR-23 are presented in two columns on loose pages, each page being
identified by the date of the Change number under which it is amended or reissued.
2.2 In general, the JAR paragraphs carry the same number as the corresponding FAR Section. In
cases where new JAR material is introduced on a subject already dealt with in FAR, this is included
within the numbering system of the relevant FAR Section. In cases where new JAR material is
introduced, and there is no corresponding section of FAR, a number is chosen for it which attempts to
place the new material in the right context within the FAR numbering system; in such cases, the
number is prefaced by the letter 'X' (e.g. JAR 23X602) to indicate that it is a European number rather
than one corresponding to an FAR number.
2.3 Explanatory Notes not forming part of the JAR text appear in an italic typeface. These are
used, for example, to show where FAR text has not been accepted for JAR. Also, sub-headings are in
italic typeface.
2.4 New, amended and corrected text is enclosed within heavy brackets.
JAR 23.1 Applicability
Subpart A - General
(a) This code prescribes airworthiness standards for the issue of type certificates, and changes to those
certificates, for -
(1) Aeroplanes in the normal, utility and aerobatic categories that have a seating configuration,
excluding the pilot seat(s), of nine or fewer and a maximum certificated take-off weight of 5670 kg (12 500
lb) or less; and
(2) Propeller-driven twin-engined aeroplanes in the commuter category that have a seating
configuration, excluding the pilot seat(s), of nineteen or fewer and a maximum certificated take-off weight of
8618 kg (19 000 lb) or less.
(b) Each person who applies for such a certificate or change must show compliance with the applicable
requirements of this code.
JAR 23.2 Special retroactive requirements
Not required for JAR 23.