This category should be for Business Directories that encompass an area larger than a single state for instance the entire United States, or a large region of the US.
Directories which cover a single state, or smaller area, will be found in the Regional area of ODP.
A Business Directory for a specific state will be found at the state level, for instance California:
Regional / North_America / United_States / California / Business_and_Economy /
A Business Directory for a specific city will be found at that locality, for instance Wilmingtion, Delaware:
Regional / North_America / United_States / Delaware / Localities / W / Wilmington / Business_and_Economy /
State-by-state directory of links to primarily free databases of public business records and a variety of corporate and business filings available on the Web. www.llrx.com/columns/roundup19.htm