Government purchasing departments in District of Columbia operate under state procurement statutes that establish mandatory competitive bidding thresholds, vendor qualification standards, and public notice requirements for all government contracting activities. District of Columbia may also operate a centralized state purchasing portal that local jurisdictions use to post bids and manage vendor registrations.

Businesses and contractors in District of Columbia seeking government contracts should register with both the state's central procurement portal and the specific local governments they wish to work with, as vendor registrations are not always shared between jurisdictions. Many District of Columbia agencies also participate in cooperative purchasing agreements that offer pre-competed contract vehicles.

Businesses in District of Columbia pursuing government contracts should subscribe to bid notification services offered by state and local purchasing departments so they receive alerts when solicitations relevant to their industry are posted. Many jurisdictions in District of Columbia also offer vendor outreach sessions and bid preparation workshops for small and minority-owned businesses new to government contracting.