The department may, in a rural region, as identified pursuant to subparagraph (A) of paragraph (1) of subdivision (c) of Section 14571, upon petition by an interested person, do either of the following:

1. (a)

   1. (1) Increase a convenience zone to include the area up to a five-mile radius of a supermarket, if the expanded convenience zone would then be served by a single existing certified recycling center or location.
   2. (2) This subdivision applies only to a convenience zone that is otherwise not being served by a certified recycling center or location meeting the requirements of Section 14571 or is exempted by the department pursuant to Section 14571.8.

2. (b)

   1. (1) Designate a convenience zone pursuant to Section 14571.1 in an area where there is no supermarket, but with two or more dealers located within a one-mile radius of each other, and that meets all of the following criteria:

      1. (A) The dealers in that area have combined gross annual sales of two million dollars ($2,000,000) or more, as certified by the petitioner in an affidavit filed with the petition.
      2. (B) The convenience zone encompasses a three-mile radius, with the center of the zone established at the dealer, located closest to the existing recycling center specified in subparagraph (D).
      3. (C) The convenience zone does not overlap any other existing convenience zone.
      4. (D) The convenience zone is served by a single existing certified recycling center.
   2. (2) The department shall identify the dealer locations only for the purpose of providing a reference point in the establishment of the convenience zone pursuant to this subdivision.
   3. (3) If the existing recycling location in a convenience zone designated pursuant to this subdivision ceases operations, the convenience zone shall also cease to exist until a new recycling location is established, and the department is petitioned by an interested person to designate a convenience zone.