The head of the U.S. central bank said its emergency credit programs were not designed to prop businesses up over the long term.

The central bank will disclose information on a monthly basis about its Term Asset-Backed Securities Loan Facility and its Paycheck Protection Program Liquidity Facility.

The agency is being methodical in its rollout of the Main Street Lending Program in hopes of avoiding missteps that followed the launch of other coronavirus relief efforts. But observers say delaying aid brings its own risks.

Banks could end up holding many low-rate Paycheck Protection Program loans on their books for two years, and dealing with irate borrowers who failed to meet federal requirements for forgiveness.

The Federal Reserve also said in a supervisory report released Friday that it would conduct stress tests this quarter as planned, taking into account sudden deterioration in the economy brought on by the coronavirus pandemic.

Up to 12% of loans under the $660 billion small-business rescue program could be tied to misleading or completely phony applications, fueling concerns about lenders' potential liability.

The agencies issued a rule to better enable banks to participate in two of the Federal Reserve’s lending facilities and “support the flow of credit to households and businesses.”

Small businesses that received loans from the Paycheck Protection Program pandemic still don’t know how much they may have to repay after the government missed a deadline to give specific guidance.

In round two of the Paycheck Protection Program, the bank has sent some 256,000 loan applications to the Small Business Administration for processing.

The Federal Reserve chairman pledged to use every tool at the central bank's disposal to limit the economic fallout from the coronavirus and urged lawmakers to take further action.