Recognizing the need to update the original version of the Petroleum Industry Guidelines for Reporting Greenhouse Gas Emissions (the Guidelines) to reflect changing practices, IPIECA and API jointly developed their second edition in 2011. First published in 2003, the petroleum industry has recognized the need for GHG accounting and reporting guidance that is focused specifically on its operations for over a decade. The Guidelines continue to promote credible, consistent, and reliable greenhouse gas (GHG) accounting and reporting practices from oil and gas operations. The new edition holds significantly revised chapters on setting boundaries (including discussion of financial control and clearer reference to Scope 1, 2, and 3 emissions) and the evaluation of industry GHG emissions, including uncertainty. There are also revisions to discussions around reporting emissions over time, de minimis emissions, and normalization. The WRI/WBCSD GHG Protocol was, as with the original edition, carefully considered for consistency. The revised Guidelines have also aimed to achieve consistency with the approaches described in the IPIECA publication Oil and Gas Industry Guidance on Voluntary Sustainability Reporting revised in 2010.
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