Hi joe,
Yes the ATC has just launched a brand new adult volunteer campaign to get more adults involved.
Dont know if you know but the staff structure has changed a bit now. If you want to go in as an officer first contact your loacal unit get some time down there as a CI and get the CO to apply for you (same as the old way you go through the officer boards etc..)
However if you dont want to be a Offcier but still in uniform there are now NCO adult ranks starting from Adult Sgt, then to Adult Flt Sgt then to AWO!
http://www.aircadets.org/index1.htm (This link might explain that)
However a piece of advice from seeing alot of staff come and go at my sqn is to get involved as a CI first and learn how that sqn operates as many ATC Sqns differ!
Need anymore help give me a shout!
Good luck!
P.S 19/20 Is now a good age for applying to me a junior officer in the ATC!!