Most of the municpalities that I deal with in North Texas reference the Commercial Building Code. Specifically, section 1008.1.3.4 (IIRC). The Commercial Fire code duplicates this code (or the other way around). Certain cities, such as Dallas, actually publish their own amendments to the CBC/CFC.
Now, here is some unsolicited advice on Maglocks. Don't use them. Unless it is a herculite-type glass door, or a double-door where code won't allow one side to be pinned in the locked position, you're doing your customer a huge disservice by using them. Door strikes and Electrified Crash Bars are much more secure, and much safer from a life-safety standpoint.