NOTIFICATION OF THE REMOVAL FROM LISTING AND REGISTRATION OF THE STATED SECURITIES

The New York Stock Exchange hereby notifies the SEC of its intention to remove the entire class of the stated securities from listing and registration on the Exchange at the opening of business on March 23, 2021, pursuant to the provisions of Rule 12d2-2 (a).

[ X ] 17 CFR 240.12d2-2(a)(3) That on March 11, 2021 the instruments representing the securities comprising the entire class of this security came to evidence, by operation of law or otherwise, other securities in substitution therefore and represent no other right except, if such be the fact, the right to receive an immediate cash payment.

The merger between Colonnade Acquisition Corp. and Ouster, Inc. became effective on March 11, 2021. Each unit of Colonnade Acquisition Corp. will be automatically separated into the component securities, and, as a result, will no longer trade as a separate security.

The Exchange also notifies the Securities and Exchange Commission that as a result of the above indicated conditions this security was suspended from trading before market open on March 12, 2021.