all such special agents : such = "Adj"?
Weird attachment options for for place of residence... and to the extent authorized... I think the best option for both is to attach it at transportation expense....

This is sort of a weird sentence -- it's very long, there are some missing determiners, and it's not clear that it has a totally sensible parse. My best analysis is:

The secretary is authorized to pay for:

• A new agent's travel expenses
• Moving a new agent's personal belongings (to the extent authorized by another section) (if that agent was appointed after 1977).

:Obj tag for large NP coordination should be :Postnucleus