On multiple lane highways with two or more separate roadways, different prima facie speed limits may be established for different roadways under any of the procedures specified in sections 28-702 and 28-703.
A.R.S. § 28-703.02
Establishing speed on multiple lane highways
Official source: Arizona State Legislature. Reproduced from public-domain Arizona statutes; confirm against the official source for the current text. Not legal advice.