Besides purchasing office supplies, ADEQ needs janitorial services, graphic arts and layout services, printing, mailing, advertising, computers, and many others. ADEQ purchases what it needs in two basic ways. For more specialized goods and services that are not provided for by state contracts, ADEQ does its own procurement. SPO maintains a bidder's list. You do not have to register with SPO to do business with ADEQ, but you are much more likely to hear of opportunities if you do.
Registration is easy and free.