Thomas Day

Thomas G. Day

Chief Sustainability Officer at USPS

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475 L’Enfant Plaza SW, Washington, D.C., District of Columbia, United States
HQ Phone:
(202) 268-2000

General Information


Chief Sustainability Officer - KPMG LLP

Chairman of the Standards Board - Universal Postal Union


D.C. Department of Health

bachelor of science degree - engineering , U.S. Military Academy at West Point

degrees - engineering and management , 

master of science degree - management , Stanford University's Graduate School of Business


Board of Regents Member - The National Association for Environmental Management

Sloan Fellow - Stanford University

Board of Governors Member - ISO

Board of Governors Member - PostCom

Vice President of Engineering - Postal Services International Limited

Recent News  

Global HR News:

Washington Leadership Global Business Conference

GLOBALISATION and C-SUITE CHALLENGES... : Washington '14 March

Chief Sustainability Officer U.S. POSTAL SERVICE Thomas Day was named Chief Sustainability Officer in June 2011. Day leads the USPS effort of being a sustainability leader by creating a culture of conservation throughout the Postal Service and leading the adoption of sustainable business practices. Day reports to Ronald A. Stroman, Deputy Postmaster General, and in addition to his responsibilities at the U.S. Postal Service, Day also formerly served (2007-2011) as Chairman of the Standards Board for the Universal Postal Union. Prior to serving in this role, Day was senior vice president, Intelligent Mail and Address Quality (2007-2011) and senior vice president, Government Relations (2005-2007). From 2001-2005, Day was vice president, Engineering. In this capacity, he oversaw development of all engineering efforts involving automation and operations, building and equipment maintenance, and the Postal Service's award-winning environmental program. During his 29-year Postal Service career, Day developed a solid operations background from various assignments in delivery, distribution, and logistics, including service as district manager of the Southeast New England District from 1996 to 2000. He is a third-generation employee who entered the Postal Service as a management associate in the Northeast Region in 1984 following five years service as an officer in the U.S. Army. Day is a graduate of the U.S. Military Academy at West Point, where he earned a bachelor of science degree in engineering in 1978. He represented the Postal Service as a Sloan Fellow at Stanford University's Graduate School of Business, where he earned a master of science degree in management in 1996.

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Climate Leadership Award winners to be honored - Center for Climate and Energy Solutions

Individual Leadership Award: Thomas G. Day, United States Postal Service (Washington, D.C.) for leading the U.S. Postal Service in reducing GHG emissions 20 percent by 2020.

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myCobbweb Portal

This is the first commercial application of a GM fuel cell vehicle in the U.S. On the left is Dr. Lawrence D. Burns, Vice President, Research & Development and Planning, GMC, and on the right is Thomas G. Day, Vice President, Engineering, USPS.

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