Regulations.gov document: U.S. EPA. (2021). Oil and Natural Gas Sector: Emission Standards for New, Reconstructed, and Modified Sources and Emissions Guidelines for Existing Sources: Oil and Natural Gas Sector Climate Review Background Technical Support Document for the Proposed New Source Performance Standards (NSPS) and Emissions Guidelines. October 2021. — retained record — High Signal
Regulations.gov document: U.S. EPA. (2021). Oil and Natural Gas Sector: Emission Standards for New, Reconstructed, and Modified Sources and Emissions Guidelines for Existing Sources: Oil and Natural Gas Sector Climate Review Background Technical Support Document for the Proposed New Source Performance Standards (NSPS) and Emissions Guidelines. October 2021.