EX-32 5 pkg-03312014xexx32.htm EX-32
Exhibit 32
CERTIFICATIONS OF CHIEF EXECUTIVE OFFICER AND
CHIEF FINANCIAL OFFICER
PURSUANT TO 18 U.S.C. §1350,
AS ADOPTED PURSUANT TO
SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002
_______________________________________
I, Mark W. Kowlzan, Chief Executive Officer of Packaging Corporation of America (the “Company”), certify, pursuant to 18 U.S.C. § 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that to my knowledge:
(1) The Quarterly Report of the Company on Form 10-Q for the period ended March 31, 2014 fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and
(2) The information contained in such Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

|  | /s/ M ARK W. K OWLZAN
|  | Mark W. Kowlzan
|  | Chief Executive Officer

I, Richard B. West, Chief Financial Officer of Packaging Corporation of America (the “Company”), certify, pursuant to 18 U.S.C. § 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that to my knowledge:
(1) The Quarterly Report of the Company on Form 10-Q for the period ended March 31, 2014 fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and
(2) The information contained in such Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

|  | /s/ R ICHARD B. W EST
|  | Richard B. West
|  | Senior Vice President and Chief Financial Officer

Date: May 8, 2014