(1)District No. 5 (Parma-Wilder area): That portion of Canyon County lying west and north of a line commencing at the junction of the north boundary of Canyon County and Range 4, Township 12 east, thence south along this line to Soeck Road, thence west along Soeck Road one-fourth mile to Notus Road, thence south along Notus Road to Highway 19, thence west one mile along Highway 19 to Friends Road, thence south along Friends Road to Boundary Road, thence east one-half mile along Boundary Road to Plum Road, thence south along Plum Road to Homedale Road, thence west along Homedale Road to the western boundary of Canyon County.
(2)District No. 6 (Caldwell-Nampa-Homedale and southern Idaho area): That portion of Canyon County not included in District No. 5 plus all of the counties in the Idaho portion of the production area not included within District No. 1.
(b) Terms used in this section have the same meaning as when used in said marketing agreement and this part.