49 C.F.R. § 372.221 Twin Cities.
Title 49 - Transportation
For the purpose of determining commercial zones, utilizing the general population-mileage formula as set forth in §372.241, each of the following combinations of cities shall be considered as a single municipality: (a) Having a population equal to the sum of their combined populations, and (b) Having boundaries comprised of their combined corporate limits, with the common portion thereof disregarded: (1) Bluefield, Va.-W. Va. (2) Bristol, Va.-Tenn. (3) Davenport, Iowa, and Rock Island and Moline, Ill. (4) Delmar, Del-Md. (5) Harrison, Ohio-West Harrison, Ind. (6) Junction City, Ark.-La. (7) Kansas City, Mo.-Kansas City, Kans. (8) Minneapolis-St. Paul, Minn. (9) St. Louis, Mo.-East St. Louis, Ill. (10) Texarkana, Ark.-Tex. (11) Texhoma, Tex.-Okla. (12) Union City, Ind.-Ohio. [41 FR 56654, Dec. 29, 1976, as amended at 62 FR 15422, Apr. 1, 1997]
Title 49: Transportation
PART 372—EXEMPTIONS, COMMERCIAL ZONES, AND TERMINAL AREAS
Subpart B—Commercial Zones
§ 372.221 Twin Cities.