Places to find ACU style 3 desert camo?

I'm trying to find a place where I can find 3 desert camo uniforms in the ACU style. I work as a Federal Law Enforcement official as a Department of the Army Civilian and my orders mandate that I have to wear the 3 desert camo uniform for duty, but it doesn't specify what style must be worn. I prefer the ACU style to the BDU, but haven't had any luck finding them. I've checked all the basic places online such as, bdu.com, galls.com, ext with no luck. Can anyone help?