Obtaining trauma accreditation

I work at an urban ED that sees somewhere north of 60,000 people at year, mostly complex medical with the occasional walk-GSW (almost once a week it seems). We're a nationally accredited heart center and various other things but we have no official trauma status. I've been tasked with gathering the preliminary information to get this party started. There's a level one adult literally right down the street and there are other factors that I think we'd be a comfortable level III (adult only). We are a teaching facility but currently do not have an ED residency program- that's in the works as well and not "my baby".

So, who do I need to talk to first? I've worked level one before and have a pretty good idea of many of the "is and outs" of maintain status but have no idea how to get started.

Thanks in advanced for any information. I do appreciate it.