The Chicago Department of Aviation (CDA) will host a Virtual Concessionaire, Small Business & Vendor Expo for local companies to learn about doing business with the CDA. Expo information will include: how to obtain ACDBE/DBE/MBE/WBE/ Certification, as well as upcoming contracting opportunities. The Virtual Expo will be held on Tuesday, December 15, 2020 from 10:00 AM to 2:00 PM Eastern Time.