Not wanting to be too pedantic on this but I guess it is very important to some on here, in section 7.1 point 3 it states:-
"On vehicles that qualify for a full cat emissions test, check the presence of the catalytic converter."
Do diesels "qualify" for a full cat emissions test? Section 7.4 only refers to a smoke test and the appropriate approved test equipment, unlike section 7.3 for spark ignition engines which has a specific section for the cat test.
Then to muddy the waters even further in section 7.1 in the "reasons for rejection" column point 3 it states "A catalityc converter missing where one was fitted as standard"