> HMSO
>
> Her Majesties Stationary Office

Yep

> > BAA
>
> British Aviation Authority

The *tricky* one. This was previously true, but no longer. Since it was privatised it is now simply BAA.

>
> > ACAS
>
> The Arbitration and Concilliation Aid Service (or words to that effect)

Very close... Advisory, Concilliation & Arbitration Service

> > AONB

Area of Oustanding Natural Beauty

> > And one of those is a *tricky* one...
>
> I'm guessing it's the last one.
>
> winter"Association Of Northern Bakers?"mute

Bea"MCSE? not me!"sty