When the President authorizes a higher federal share for a limited time, FEMA applies it to eligible work performed through 11:59 p.m. local time on the expiration date. You must separate costs before and after the deadline.
Timesheets, equipment logs, leases and contractor invoices that show dates of work relative to the deadline.
Ask contractors to invoice separately for work before and after the deadline. Prorating by percentage complete usually costs you money.