Don't listen to Strategist, he's got it all wrong (no offence).At BAH the grades are Consultant, Sen. Consultant, Associate, Sen. Associate, Principal, Partner, Sen. PartnerThis amounts to C1, C2, SC1, SC2, A1, A2, SA1, SA2, P1, P2, P3... Partner.Sometimes there is an A3 slot if an associate's not quite ready for the SA role. But, if you get "promoted" to A3 then you might as well start looking for another job because you're a borderline case and that's not good in an up or out environment.A0 isn't a grade that is part of the normal promotion path. It basically means that they're taking you on as a 'junior associate'. You don't want to spend long at the associate level, it's a killer. It sounds like they think you're more like Senior Consultant material, but for some reason are offering you a slightly elevated status, possibly because you have an MBA or something?