The Bipartisan Policy Center is a Washington, D.C.-based think tank that promotes bipartisanship and seeks to address key challenges facing the United States. It was founded in 2007 by former Senate Majority Leaders Howard Baker, Tom Daschle, Bob Dole, and George Mitchell. The organization focuses on a wide range of issues including health, energy, national security, the economy, housing, immigration, and governance.

The center is known for its efforts to bring together leaders from both political parties to develop and promote practical solutions to complex policy issues. It conducts research, hosts events, and provides a platform for dialogue among policymakers, experts, and the public.

Regarding sustainability, the Bipartisan Policy Center has engaged in discussions and research related to energy policy and climate change. It has hosted events and published reports aimed at finding common ground on energy efficiency, renewable energy, and reducing carbon emissions. However, specific details on the organization's internal sustainability practices or certifications are not widely documented.