Question:
AA units are replaced using art RPs, and are in fact anti-aircraft artillery.  However, the rules, at least as I can find, do not seem to make a distinction beyond that.  Are these units treated the same as artillery units for movement, or purposes of combat restrictions?  Can they provide support?

Answer:
3A2, 2nd bullet:  “Artillery.  All unit types listed as artillery on the unit identification chart…  …Note that for game purposes antiaircraft and antitank units are not artillery.”  So the answer to both questions above is no.  For more details, see also the Unit Identification Chart (UIC).

Source:
[DPS, Rules Judge, 21-Aug-05]