that's at least 500k in salaries even for the lowball public sector, and there are at least 230 federal agencies, which you can be damn sure are gonna interpret this as broadly as possible, i.e. including the subagencies that's 400+ under 5 USC § 551 (see https://www.federalregister.gov/agencies)
nothing like kicking off your "efficiency" drive with a $200m+ expense