The nation’s smallest businesses are getting revamped Paycheck Protection Program (PPP) rules and a special filing period announced in recent changes from the Biden-Harris administration. Small businesses with fewer than 20 employees make up 98% of the small businesses in the U.S. but have not received much assistance from the PPP so far and have accounted for a significant portion of business closures during the pandemic. These new rules seek to remedy that. Here’s what you should know.