Borrowing by big U.S corporations was expected to slow down going into the summer after the first five months of the year saw a record $1 trillion worth of new investment-grade corporate bonds issued.

But the pace of borrowing sped up again this week after the Federal Reserve unveiled changes to its $750 billion emergency corporate lending facility on Monday to make it easier for credit to flow to a broad-base of companies during the coronavirus pandemic.

Specifically, the Fed said that it would start buying eligible corporate bonds included in standard indexes used in the secondary market, where debt trades on the open market once it’s issued, rather than just buying corporate bond exchange traded funds.

Those purchases, importantly, will no longer require certification, a formal process where a company shows it is not insolvent and it also satisfies the conflict-of-interest requirements of the CARES Act intended to prevent businesses owned by senior government officials from taking advantage of stimulus funds.

“The big difference is that this is going to allow them to buy bonds without companies having to certify any sort of eligibility,” said David Del Vecchio, a portfolio manager at PGIM Fixed Income, in an interview.

“This new index-based approach really kind of changes everything.”