Paco,
Your previous reference was concerned with training; the absolute requirement for CRM is contained in JAR-OPS 3.940 - there can be no confusion here as it appears to be absolute.
JAR-OPS 3.940 Composition of Flight Crew
(a) An operator shall ensure that:
(7) For crew members serving the operator as a commander, initial operator’s Crew Resource Management (CRM) training shall be completed before commencing unsupervised line flying.
I think that you will find that the intitial paragraph of 3.943 is intended also for multi-crew operations (which includes crew members who are other than flight crew) and, in that sense, JAR-OPS 3.940(a)(7) is the defining rule. The reason that the text differs between JAR-OPS 1 & 3 is that, in JAR-OPS 3, the applicability date (2002) was already past before the amendment became effective. A comprehensive reading of the other amended rules (see the [] brackets and dates) in Subpart N will indicate that an integrated revision has been conducted.
As for JAR OPs, well, nobody is very clued up on it...
I'm sure a number of esteemed readers and contributers to this forum would disagree with that
broad statement.
Jim