The measure would largely maintain federal agencies at prior-year funding rates, but it carves out billions in exceptions, including for Navy shipbuilding programs with prior-year cost increases. CBO estimated the stopgap at about $1.7 trillion in annualized budget authority and $1.87 trillion in outlays across the 12 appropriations bills it extends. Of that, $843.9 billion in budget authority is for defense. The CBO estimate also identifies $1.54 billion in emergency-designated budget authority for the EPA’s Superfund program. CBO says the money stems from a 2023 law rather than from a new emergency designation in the stopgap.