Exhibit 32

Section 1350 Certification

Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

(Subsections (a) and (b) of Section 1350, Chapter 63 of Title 18, United States Code)

Pursuant to section 906 of the Sarbanes-Oxley Act of 2002 (subsections (a) and (b) of section 1350, chapter 63 of title 18, United States Code), each of the undersigned officers of United Technologies Corporation, a Delaware corporation (the “Corporation”), does hereby certify that:

The Annual Report on Form 10-K for the year ended December 31, 2007 (the “Form 10-K”) of the Corporation fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934 and information contained in the Form 10-K fairly presents, in all material respects, the financial condition and results of operations of the Corporation.

Dated: February 7, 2008	/s/ George David
	George David
	Chairman and Chief Executive Officer
	/s/ Louis R. Chênevert
	Louis R. Chênevert
	President and Chief Operating Officer
	/s/ James E. Geisler
	James E. Geisler
	Vice President, Finance
	/s/ Gregory J. Hayes
	Gregory J. Hayes
	Vice President, Accounting and Finance
	/s/ Margaret M. Smyth
	Margaret M. Smyth
	Vice President, Controller