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This page provides answers to significant questions raised by agencies as they collect their GHG inventory data and calculate their emissions.

The FAQs are arranged in sections according to the following topics. Click on a topic within the list to jump down to FAQs on that topic. Then click on a particular question to view the corresponding answer.

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Frequently Asked Questions

2. Inventory Submission
Q1. To whom and how should my agency submit its comprehensive GHG inventory by January 31, 2012?  
Q2. If my agency calculated its emissions inventory in a manner other than specified in the Guidance and Technical Support Document (TSD), does my agency need to notify CEQ/FEMP of this difference?  

3. Inventory Verification
Q1. What qualifies someone as an "independent" reviewer for second-party verification?  
Q2. How will inventory verification be reported to CEQ/FEMP?  

4. Default and Advanced Methodologies
Q1. We would like to encourage reporting of our site-level activities with advanced methodologies, when such data is reasonably available, to develop more accurate GHG emission estimates. What if our agency has some sites that can use advanced methodologies and others that only have data for the default methodologies? Can we report using both methods?  

6. Renewable Energy and Renewable Energy Certificates (RECs)
Q1. Should renewable energy credits and/or on-site renewable energy generation be added back into our 2008 baseline?  
Q2. For years after the 2008 baseline, how should energy produced by on-site renewable energy-powered equipment be reported?  
Q3. Can the Reporting Portal make calculations where renewable energy is added onto the baseline in the 2008 inventory report and subtracted in the 2010 inventory report?  
Q4. How should a REC purchase that involves multiple technologies or project locations be entered into the Reporting Portal?  
Q5. How should I report hydropower delivered by a Power Marketing Administration like WAPA or BPA, or my local utility?  
Q6. Should I report renewable energy projects located on a Federal site, but where the RECs and/or energy are owned by a third party?  
Q7. Do I have to report off-grid renewable energy systems, like PV-powered navigation buoys or street lights?  

7. Waste Incineration
Q1. Do emissions from waste incinerators need to be included in an agency's GHG reporting and baseline?  

8. Refrigerants
Q1. Should Class II ozone depleting substances (ODSs), such as R-22, be reported as part of GHG accounting?  
Q2. The Guidance enables agencies with cyclical operations or events to calculate a 3-year rolling average base year value for Scope 1 fluorinated fugitive emissions. Can we use the 3-year rolling average for some F-gases (e.g., SF6) and not others?  

9. Scope 3 Solid Waste Disposal
Q1. Should we account for scope 3 solid waste disposal at leased buildings?  

10. Scope 3 Wastewater Treatment
Q1. Should we account for contracted (scope 3) wastewater treatment emissions associated with Federal employees in leased buildings?  

11. Employee Commuting
Q1. Should contractor employees, on-site contractors, or contractor employees working at government-owned contractor-operated (GOCO) facilities be included in an agency's scope 3 emissions from employee commuting?  

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