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The PBS Office of Engineering develops, advocates for, educates on, implements, and disseminates high standards of cost-effective performance. It uses an integrative process to partner with private sector architects and engineers to raise the quality of design and construction, in accordance with applicable mandates such as Executive Order 14344 of August 28, 2025.
Through our dedication to design excellence, research, education, creative collaboration, and operational excellence, our design teams use appropriate technologies and practices to apply legally-required sustainable building principles and practices. GSA continually monitors performance to learn from our projects and to reach greater heights of efficiency and stewardship.
We continue to conserve energy and water, save taxpayer dollars through efficient design and construction, and enhance America’s environment while offering safe and healthy buildings for federal workers.
The American Institute of Architects Committee on the Environment Top Ten is the industry’s best-known award program for high-performance design excellence. Each year, ten innovative projects earn the prize for setting the standard in design and sustainability. GSA is the only owner to have won 9 AIA COTE Top Ten awards.
For more information on efficient design and construction, contact acting GSA Core Building Standards Program Manager Walter Tersch (walter.tersch@gsa.gov).
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Rates for Alaska, Hawaii, and U.S. territories and possessions are set by the Department of Defense.
Rates for foreign countries are set by the Department of State.
Rates are available between 10/1/2023 and 09/30/2026.
The End Date of your trip can not occur before the Start Date.
Traveler reimbursement is based on the location of the work activities and not the accommodations, unless lodging is not available at the work activity, then the agency may authorize the rate where lodging is obtained.
Unless otherwise specified, the per diem locality is defined as "all locations within, or entirely surrounded by, the corporate limits of the key city, including independent entities located within those boundaries."
Per diem localities with county definitions shall include"all locations within, or entirely surrounded by, the corporate limits of the key city as well as the boundaries of the listed counties, including independent entities located within the boundaries of the key city and the listed counties (unless otherwise listed separately)."
When a military installation or Government - related facility(whether or not specifically named) is located partially within more than one city or county boundary, the applicable per diem rate for the entire installation or facility is the higher of the rates which apply to the cities and / or counties, even though part(s) of such activities may be located outside the defined per diem locality.
U.S. General Services Administration