The Federal Reserve said Tuesday that it had joined the Network of Central Banks and Supervisors for Greening the Financial System after participating in discussions with the group for over a year.

The end date for the Paycheck Protection Program Loan Facility was moved from Dec. 31 to March 31, giving lenders more time to line up the liquidity needed to buy and sell portfolios.

Vice Chairman of Supervision Randal Quarles said the agency wants to figure out why banks are holding on to capital that could be used more aggressively to respond to the pandemic.

The central bank will prolong the life of the Commercial Paper Funding Facility and three other programs while returning congressionally approved funds for five separate facilities that will shut down Dec. 31.

The Trump administration has compelled the Federal Reserve to shut down the Main Street Lending Program and other facilities that aid banks’ pandemic relief efforts, but President-elect Biden’s Treasury nominee could help turn the spigot back on.

Yellen, the former head of the Federal Reserve, would become the first woman to hold the nation’s top economic policy job just as the coronavirus pandemic threatens another downturn.

The move comes a day after the Federal Reserve had balked at the Treasury Department's demand that it return funds meant for pandemic relief that have so far gone unused.

Treasury Secretary Steven Mnuchin called on the Federal Reserve Thursday to let several of its emergency lending facilities expire at yearend and return unused funds provided by Congress. But the central bank wants the programs to continue.

The Term Asset-Backed Securities Loan Facility was brought back to inject $100 billion into the pandemic-battered economy, but only a fraction has been disbursed. Yet experts, pointing to its calming effects on markets, recommend that it be extended into next year.

Signs of weakness are showing in commercial real estate where property values have begun falling. The report also said that hedge fund leverage has remained elevated and that life insurers are reaching debt levels not seen since the 2008 financial crisis