SEC Form 4

FORM 4		UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940	OMB APPROVAL OMB Number: 3235-0287 Estimated average burden hours per response: 0.5
	Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

1. Name and Address of Reporting Person* THIER SAMUEL O MD (Last) (First) (Middle) 251 BALLARDVALE STREET (Street) WILMINGTON MA 01887 (City) (State) (Zip)	2. Issuer Name and Ticker or Trading Symbol CHARLES RIVER LABORATORIES INTERNATIONAL INC [ CRL ]	5. Relationship of Reporting Person(s) to Issuer (Check all applicable) X Director 10% Owner Officer (give title below) Other (specify below)
	3. Date of Earliest Transaction (Month/Day/Year) 02/13/2006
	4. If Amendment, Date of Original Filed (Month/Day/Year)	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. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction 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 Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. 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: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Stock Options (Right to Buy)	$47.04	02/13/2006		A		12,000		02/13/2007	02/13/2011	Common Stock	12,000	$0.00	12,000	D

Explanation of Responses:

Remarks:

	/s/Matthew Daniel as attorney-in-fact for Samuel O Thier	02/15/2006
	** Signature of Reporting Person	Date
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 Number.

 POWER OF ATTORNEY – SECTION 16 FILINGS

Know all by these

presents, that the undersigned hereby constitutes and appoints Joanne

(Jody) P. Acford and Matthew L. Daniel as the undersigned's true and
lawful
attorneys-in-fact to:

(1) prepare, execute in the
undersigned’s
name and on the undersigned's behalf, and submit to
the U.S. Securities and
Exchange Commission (the "SEC") a Form ID,
including amendments thereto,
and any other documents necessary or
appropriate to obtain codes and
passwords enabling the undersigned to
make electronic filings with the SEC
of reports required by Section 16(a)
of the Securities Exchange Act of 1934
or any rule or regulation of the
SEC;

(2) execute for and on behalf of
the undersigned, in the
undersigned's capacity as an officer and/or
director of Charles River
Laboratories International, Inc. (the "Company"),
Forms 3, 4, and 5 in
accordance with Section 16(a) of the Securities
Exchange Act of 1934 and
the rules thereunder, and any other forms or
reports the undersigned may
be required to file in connection with the
undersigned's ownership,
acquisition, or disposition of securities of the
Company;

(3) do
and perform any and all acts for and on behalf of the
undersigned which
may be necessary or desirable to complete and execute any
such Form 3, 4,
or 5, complete and execute any amendment or amendments
thereto, and
timely file such form with the United States Securities and
Exchange
Commission and any stock exchange or similar authority; and


(4)
take any other action of any type whatsoever in connection with the

foregoing which, in the opinion of such attorney-in-fact, may be of
benefit
to, in the best interest of, or legally required by, the
undersigned, it
being understood that the documents executed by such
attorney-in-fact on
behalf of the undersigned pursuant to this Power of
Attorney shall be in
such form and shall contain such terms and
conditions as such
attorney-in-fact may approve in such
attorney-in-fact's discretion.


The undersigned hereby grants the
attorney-in-fact full power and
authority to do and perform any and every
act and thing whatsoever
requisite, necessary, or proper to be done in
the exercise of any of the
rights and powers herein granted, as fully to
all intents and purposes as
the undersigned might or could do if
personally present, with full power of
substitution or revocation, hereby
ratifying and confirming all that such
attorney-in-fact, or such
attorney-in-fact's substitute or substitutes,
shall lawfully do or cause
to be done by virtue of this power of attorney
and the rights and powers
herein granted.  The undersigned acknowledges
that the foregoing
attorney-in-fact, in serving in such capacity at the
request of the
undersigned, is not assuming, nor is the Company assuming,
any of the
undersigned's responsibilities to comply with Section 16 of the

Securities Exchange Act of 1934.

This Power of Attorney shall
remain
in full force and effect until the undersigned is no longer
required to
file Forms 3, 4, and 5 with respect to the undersigned's
holdings of and
transactions in securities issued by the Company, unless
earlier revoked by
the undersigned in a signed writing delivered to the
foregoing
attorneys-in-fact.

IN WITNESS WHEREOF, the undersigned
has caused this
Power of Attorney to be executed as of this 30th day of
January, 2006.


																			 /s/Samuel O. Thier, M.D.


Signature