FORM 4
[ ] Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).         
 UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES
                                                                                  
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OMB Number: 3235-0287
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Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940
                      

1. Name and Address of Reporting Person *

Chiang Willie CW		 2. Issuer Name and Ticker or Trading Symbol

PLAINS ALL AMERICAN PIPELINE LP [ PAA ] 		5. Relationship of Reporting Person(s) to Issuer (Check all applicable)

__X__ Director                    _____ 10% Owner
__X__ Officer (give title below)    _____ Other (specify below)
Chairman & CEO
(Last)          (First)          (Middle)

333 CLAY STREET, SUITE 1600		 3. Date of Earliest Transaction (MM/DD/YYYY)

1/4/2023
(Street)

HOUSTON, TX 77002
(City)        (State)        (Zip)
4. If Amendment, Date Original Filed (MM/DD/YYYY)

 
 6. Individual or Joint/Group Filing (Check Applicable Line)

_X _ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3) 		2. Trans. Date 2A. Deemed Execution Date, if any 3. Trans. Code
(Instr. 8) 		4. Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5) 		5. Amount of Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 3 and 4) 		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V Amount (A) or (D) Price

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivate Security
(Instr. 3)		2. Conversion or Exercise Price of Derivative Security3. Trans. Date3A. Deemed Execution Date, if any4. Trans. Code
(Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date7. Title and Amount of Securities Underlying Derivative Security
(Instr. 3 and 4)		8. Price of Derivative Security
(Instr. 5)		9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4)11. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Class B Units $0 1/4/2023  M (1)    375521   (1) (1)Class A Units/Class B Shares 353489 $0 0 D  
Class A Units/Class B Shares $0 1/4/2023  M (1)  353489     (2) (2)Common Units 353489 $0 353489 D  
Explanation of Responses:
(1) Pursuant to the limited partnership agreement of Plains AAP, L.P. ("AAP"), a holder of vested Class B Units of AAP, (the "Class B Units") may convert (the "Conversion Right"), at any time and from time to time, such Class B Units into Class A Units of AAP (the "Class A Units") and Class B Shares (the "Class B Shares") of Plains GP Holdings, L.P. ("PAGP"), at a conversion ratio of approximately 0.941 Class A Units and Class B Shares for each Class B Unit. The Conversion Right does not expire. On January 4, 2023, the Reporting Person exercised his right to convert 375,521 vested Class B Units into 353,489 Class A Units and Class B shares.
(2) Pursuant to the limited partnership agreement of AAP, Reporting Person has the right, at any time and from time to time, to redeem (the "Redemption Right") his Class A Units, together with a like number of Class B Shares, for common units of Plains All American Pipeline, L.P. on a one-for-one basis. The Reporting Person has not yet exercised the Redemption Right; the Redemption Right does not expire.

Reporting Owners
Reporting Owner Name / Address
Relationships
Director10% OwnerOfficerOther
Chiang Willie CW
333 CLAY STREET
SUITE 1600
HOUSTON, TX 77002		X
Chairman & CEO
Signatures
/s/ Ann F. Gullion, as attorney-in-fact for Willie CW Chiang1/5/2023
**Signature of Reporting PersonDate
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
*If the form is filed by more than one reporting person, see Instruction 4(b)(v).
**Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note:File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB control number.
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