Commercial and industrial zones
Commercial and industrial zones are those districts established by the zoning authorities as being most appropriate for commerce, industry, or trade, regardless of how labeled. They are commonly categorized as commercial, industrial, business, manufacturing, highway service or highway business (when these latter are intended for highway-oriented business), retail, trade, warehouse, and similar classifications.
23 CFR § 750.703
The terms as used in this subpart are defined as follows: