[CTPP] FAQ's

I was wondering how other states are dealing with FHWA's quazi-official (all I've seen are the FAQ's on their website) implementation guidelines applying 2000 Census data to urban areas. I haven't seen anything from FHWA similar to what the US Bureau of Census put out in the March 15, 2002 Federal Register. Are we to assume that these Internet site FAQ's take precedence over what currently exists under USC Title 23? FHWA guidelines have been known to change depending on public input. The bottom line is, we need to start identifying our urban boundaries (deadlines are coming up - e.g. HPMS) and yet, I don't believe we have a clear mandate on how to proceed. Is this just a backdoor approach without going through a formal process or am I missing something? I would appreciate any thoughts on this. Thanks. Zia Kazimi Urban Planning Montana Department of Transportation