UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
Notice of Effectiveness
Effectiveness Date: September 29, 2021 4:30 P.M.
Form: S-3
CIK: 0001070423
Company Name: PLAINS ALL AMERICAN PIPELINE LP
File Number: 333-259390
CIK: 0001299906
Company Name: PAA FINANCE CORP
File Number: 333-259390-01