United States Sections

Canada Sections

Ontario Section - S28
Province of Ontario except that portion east of a line drawn from a point directly east of Kingston northwesterly to Chalk River to Ontario-Quebec border; and that portion west of Route 40 from Port Lambton to Erie Beach (Windsor metropolitan area).

Québec Section - S23
Province of Québec.

Mexico Sections

Mexico-Centro - S104
The States of Aguascalientes, Colima, Estado de Mexico, Guanajuato, Guerrero, Hidalgo, Jalisco, Michoacan, Morelos, Puebla, Queretaro, San Luis Potosi, Tamaulipas, Tlaxcala, Veracruz, and Distrito Federal.