12. Incorporation by reference---(1) The following may be incorporated
 by reference into a rule made by the Minister or the Director:
   (a) Standards, requirements, or recommended practices of international
         organisations:
   (b) Standards, requirements, or rules of any transport organisation:
   (c) Any other written material or document that, in the opinion of the
         Minister is too large or impractical to be printed as part of
         the rule.

   (2) Any material incorporated in a rule by reference under subsection
 (1) of this section shall be deemed for all purposes to form part of the
 rule; and, unless otherwise provided in the rules, every amendment to
 any material so incorporated by reference that is made by the person or
 organisation originating the material shall, subject to subsection (4)
 of this section, be deemed to be part of the rule.

   (3) The Director shall make available for inspection free of charge or
 purchase at a reasonable price, at the head office of the Authority,
 copies of all material incorporated in a rule by reference under
 subsection (1) of this section and copies of all amendments deemed to be
 part of any rule.

   (4) No amendment to any material incorporated in a rule by reference
 under subsection (1) of this section shall have effect until it is made
 available for inspection or purchase in accordance with subsection (3)
 of this section.