OCA's citywide term contracts Before making a purchase, review OCA’s current citywide term contracts for commonly purchased goods and services. Resources OCA's list of citywide term contracts Use this list to view OCA’s current citywide term contracts for commonly purchased goods and services. How to Use OCA's Citywide Term Contracts General instructions on how to use OCA's Term Contracts. OCA Prequalified Pool Lists Departments can choose from within each pool when awarding specific projects, using one of three selection options available under SF Admin Code Section 21.4. Departments Office of Contract Administration