An I correct to assume that as of April 2012 JAA & JARs and the associated ACM etc will cease to exist.
The JAA ceased to exist on 30 June 2009.
It appears that the EASA is being established and slowly taking over as the European Aviation Authority for Commercial Flight Operations. If i'm correct then this authority will have it's own regulations and sub regs, appendices, ACMs etc.
EASA is an Agency of the European Union ('A' for 'Agency') based in Cologne.
EASA has been responsible for certification and continuing airworthiness in the EU for a few years now. The
Basic Regulation sits at the top level and sets out the principles, and below it sit Implementing Rules, supported by AMC/GM and certification specifications.
EU-OPS (which pre-dates EASA) has governed Commercial Air Transportation operations in the EU since 2008, with some aspects coming into force in 2009, some quite recently in 2011, which may be why you're starting to see EU-OPS labels on the charts.
EASA's 'competence' has been extended to Flight Crew Licensing and Operations by an amendment to the Basic Regulation in 2008. Thus in April 2012, with transition periods of 2-3 years in some cases, Part-FCL and OPS will start to replace national licensing and operations rules for all flights, as well as replacing EU-OPS for CAT.
Part-FCL is at a more advanced and is reported to have passed the last regulatory hurdle in the European Parliament. EASA's Opinion for
Part-FCL was set out last year, though the subsequent regulatory process has modified it. I don't know where to find the current version.
OPS is made up of 7 different parts, but essentially divides operations into Part-CAT, other commercial ops (Part-SPO), non-commercial operations with complex aircraft (jets, multi-turboprops and similar) (Part-NCC) and non-commercial operations with non-complex aircraft (Part-NCO).
EASA's Opinion on Part-CAT was published last year. It hasn't yet been through the rest of the legislative process: comitology and then adoption by the European Parliament.
The
Comment Response Documents for Part-NCC and Part-NCO have just been published. There's a phase for "reactions" from stakeholders, the the corresponding Opinion will be published.
Part-SPO hasn't even got as far as a CRD yet.
Hope that helps.