Thomas Day was named Chief Sustainability Officer in June 2011. He 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. Prior to serving in this role, he was Senior Vice President, Intelligent Mail and Address Quality (2007-2011) and Senior Vice President, Government Relations (2005-2007). From 2001-2005, he was Vice President, Engineering.
Day 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. He 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.