Business district
Business district means the territory contiguous to and including a highway when within any 600 feet along such highway there are buildings in use for business or industrial purposes, including but not limited to hotels, banks, or office buildings which occupy at least 300 feet of frontage on one side or 300 feet collectively on both sides of the highway.
Source
49 CFR § 390.5T
Scoping language
Unless specifically defined elsewhere, in this subchapter: