Hi
The problem with the ATIP is that it barely scratch the surface of the actual information bank IRC or former CIC is using. The notes in the ATIP are placed in accordance with the current at the time Internal Operational Bulletins which most likely recently have been modified.
On top of that they are not accessible to the general public.
Specially with the change of the power in the country from Conservatives to Liberals you can see that the tone from IRC has changed for better. The reason for that are also the modified Internal Bulletins.
That's why is almost impossible someone to read properly these notes because the definitions are available only for internal operational use.
Having that in mind that these notes might be the same as a note, but according to the internal bulletins they might have different reference.