House Oversight and Government Reform Subcommittee on Energy Policy, Health Care, and Entitlements Chairman James Lankford (R-OK) and Ranking Member Jackie Speier (D-CA), in an August 20 letter, asked Office of Information and Regulatory Affairs Administrator Howard Shelanski to expand upon past testimony about the administration’s estimates on the social cost of carbon. The pair asked for specifics about the interagency working group that created the estimates. Shelanski previously appeared before the subcommittee on July 18.