The identification of ATS routes are made as a way to make unambiguous reference to any ATS route without the have to have to explain it. Similar to B2 but limited to the techniques endorsed over the licence: communication/navigation (com/nav), To guage Should the prospect has received the necessary competence https://elliotzkvdm.blogdigy.com/the-2-minute-rule-for-pilot-support-service-50629255