Ariz. Rev. Stat. § 49-246
A. Pursuant to section 49-245, the director may issue a general permit for facilities requiring implementation of best management practices appropriate to the class of discharges to be regulated. The director shall:
B. The director may establish best management practices for the following facilities or activities:
C. The director may by rule establish best management practices for additional facilities or activities pursuant to this section, if all of the following apply: