It starts here:

The Portal has reopened for applications to the federal Paycheck Protection Program, a small business "loan" to help businesses with fewer than 500 employees keep their workers on the payroll.
SBA will forgive the entire loan if all employees are either kept on the payroll - or rehired - for eight weeks and the money is used for payroll, rent, mortgage interest, or utilities.
Link with all information is here:
https://www.sba.gov/funding-programs/loans/coronavirus-relief-options/paycheck-protection-program#section-header-0