None. 157 Item 16. Form 10-K Summary. Table of Contents *Management contracts and compensatory plans and arrangements required to be filed as exhibits pursuant to Item 15(b) of this report. Unless otherwise indicated, all filings referenced above on Forms 10-K, 10-Q and 8-K are contained in the SEC File No. 001-00768. 32 Certification of D. James Umpleby, III, Chief Executive Officer of Caterpillar Inc. and Andrew R.J. Bonfield, Chief Financial Officer of Caterpillar Inc., pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 101.INS XBRL Instance Document 101.SCH XBRL Taxonomy Extension Schema Document 101.CAL XBRL Taxonomy Extension Calculation Linkbase Document 101.DEF XBRL Taxonomy Extension Definition Linkbase Document 101.LAB XBRL Taxonomy Extension Label Linkbase Document 101.PRE XBRL Taxonomy Extension Presentation Linkbase Document