This interim final rule implements section 328 of the Economic Aid to Hard-Hit Small Businesses, Nonprofits, and Venues Act, which revises the requirements for refinancing debt in the 504 Loan Program, including: For 504 debt refinancing involving expansions, increasing the amount of existing indebtedness that may be refinanced; and for 504 debt refinancing not involving expansions, removing two limitations on the program, reinstating an alternate job retention goal for the refinancing project, revising the definition of qualified debt, and removing the prohibition against Certified Development Companies ("CDCs") participating in the Premier Certified Lenders Program using their delegated authority to make these loans.