49 C.F.R. § 372.243 Controlling distances and population data.
Title 49 - Transportation
In the application of §372.241: (a) Air-line distances or mileages about corporate limits of municipalities shall be used. (b) The population of any municipality shall be deemed to be the highest figure shown for that municipality in any decennial census since (and including) the 1940 decennial census. (c) Contraction of municipal boundaries will not alter the size of commercial zones. [32 FR 20040, Dec. 20, 1967, as amended at 37 FR 15701, Aug. 4, 1972; 50 FR 10233, Mar. 14, 1985; 62 FR 15422, Apr. 1, 1997]
Title 49: Transportation
PART 372—EXEMPTIONS, COMMERCIAL ZONES, AND TERMINAL AREAS
Subpart B—Commercial Zones
§ 372.243 Controlling distances and population data.