HGOVT
Thanks you very much for the useful information. It took me about an hour to track down the references! So I will post the relevant links here for the assistance of others.
User Guide for ATO Manuals
http://www.easa.europa.eu/approvals-...uals080612.pdf
Interesting EASA Workshop held in Vienna 24th Jan. 22013
http://www.austrocontrol.at/jart/prj...RA%20clean.pdf
Annex to ED Decision 2012/007/R
European Aviation Safety Agency
Acceptable Means of Compliance
(AMC)
and Guidance Material (GM)
http://easa.europa.eu/agency-measure...2012-007-R.pdf