Term Definition Term Definition
ASHRAE American Society of Heating, Refrigerating and Air-Conditioning Engineers GGE Gallons of gasoline equivalent, used as a standard measure for comparing different types of vehicle fuels
B20 Fuel blend containing 80 percent conventional diesel fuel and 20 percent biodiesel. GHG Greenhouse gas - Any gas that absorbs infrared radiation in the atmosphere causing warming.
BTU British thermal unit- A British Thermal Unit (BTU) is the amount of heat energy needed to raise the temperature of one pound of water by one degree F. GJ Gigajoules- 1 gigajoule is equivalent to approximately 278 kilowatt hours or 25 liters of gasoline.
CCAR California Climate Action Registry GRI Global Reporting Initiative
Click-N-Ship ® USPS online, self-service shipping offering GWP Global warming potential, assesses the potential for impacting global warming for each type of greenhouse gas
CNG Compressed natural gas HVAC Heating Ventilation and Air Conditioning
CO2 Carbon dioxide, one of six primary greenhouses gases IPC International Post Corporation
CO2-e Carbon dioxide equivalent, used as a measure for comparing different types of greenhouse gases LEED Leadership in Energy and Environmental Design - US Green Building Council’s program for certifying high-performance buildings
Cradle-to-Cradle Certification A scientifically based process that establishes 39 Specific criteria to assess the environmental attributes of inputs and outputs used in Manufactured goods LNG Liquefied Natural Gas
DOE Department of Energy MPG Miles per gallon
E-85 Ethanol blend with 15 percent unleaded gasoline MSW Municipal solid waste
EEMS A USPS system that consolidates that consolidates facility-related energy information into one location for real-time monitoring and management of energy performance; identification of reduction Opportunities, and improved facility energy planning. MT Metric ton
EIA Energy Information Administration, a program of the Department of Energy MTAC Mailer’s Technical Advisory Committee
EISA Energy Independence and Security Act (2007) PERF The Postal Employees’ Relief Fund (PERF) is a 501 (c) (3) charitable organization operated by USPS and its management and union organizations to benefit postal employees affected by wildfires and
natural disasters.
Energy Intensity The amount of energy used per unit of activity.
Examples of activity measures are floor space, distance, etc.
PRC Postal Regulatory Commission
EPA Environmental Protection Agency Rural Route Delivery route in non-urban areas, often operated by USPS employees in personal vehicles
EPAct Energy Policy Act of 2005 TCSS Transportation Contract Support System
FAMS Fuel Asset Management System – a Postal Service information system designed to capture fuel transaction
UMS Utility Management System – A Postal database that centralizes tracking, payment and utility bill review. It also captures monthly energy consumption data for large facilities.
Federal Energy Management Program DOE program designed to facilitate the Federal Government's implementation of sound, cost-effective energy management and investment practices to enhance the nation's energy security and environmental stewardship VMAS Vehicle Maintenance Accounting System – A Postal system that records all vehicle related expenses.

Link to previous page “Our Community part 4, Disaster Relief” Link to next page “GRI Content Index”