Q739. How does the petroleum and natural gas systems data reported under the GHGRP compare to the data reported to the California Air Resources Board (CARB)?

A739. The GHGRP covers the same sources of emissions in California as CARB, but there are differences in the reporting thresholds as well as how facilities are defined. CARB has a different definition for onshore production facilities than the GHGRP. The practical implication is that individual CARB facilities reporting under onshore production may be larger than comparable GHGRP facilities. However, there will be more facilities in the GHGRP, and those facilities will cover the same emissions as the smaller number of CARB facilities. It is not expected that the total emissions covered will be different between the GHGRP and CARB.

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Source: Brian Cook, 2/1/2013 (W Data release FAQs 2-1-13 3pm (2).doc), A. McKittrick 9/30/2013

Approval / Publishing History: Version 2

Expiration: none

Relevant Subpart/Component: Subpart W, General
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