Wis. Stat. § 285.35: Clean fuel fleet program.

(1) Definitions. In this section:

(a) “Clean alternative fuel” has the meaning given in 42 USC 7581 (2).

(b) “Clean-fuel vehicle” has the meaning given in 42 USC 7581 (7).

(c) “Covered fleet” has the meaning given in 42 USC 7581 (5).

(2) Areas.

(a) The department shall issue documents that describe the areas of the state in which clean-fuel vehicle programs are required under 42 USC 7511a (c) (4) (A).

(b) The department may, by rule, determine areas of the state, other than areas described under par. (a), in which the department will require clean-fuel vehicle programs. The department may not require a clean-fuel vehicle program in an area unless that requirement is authorized under s. 285.11 (6).

(c) Notwithstanding ss. 227.01 (13) and 227.10 (1) a document issued under par. (a) is not a rule. A document issued under par. (a) may be reviewed under ss. 227.42 and 227.52.

(3) Requirements. The department shall promulgate by rule requirements for the use of clean-fuel vehicles and clean alternative fuels by operators of covered fleets in areas identified under sub. (2) (a) or (b). The rules shall be in accordance with the requirements applicable to covered fleets under 42 USC 7586 and regulations promulgated under that provision.