A federal government shutdown officially began Tuesday morning as a deadlocked Congress failed to reach an agreement on a short-term funding measure by a 12:01 a.m. ET deadline.
Government officials told agencies to begin executing plans for a shutdown -- the first in 17 years -- shortly before midnight Monday.
In a memo to executive branch officers sent less than half an hour before the deadline, Office of Management and Budget director Sylvia Burwell said there was no "clear indication" that Congress would reach an agreement to keep the government's lights on.
"Agencies should now execute plans for an orderly shutdown due to the absence of appropriations," she wrote. "We urge Congress to act quickly to pass a Continuing Resolution to provide a short-term bridge that ensures sufficient time to pass a budget for the remainder of the fiscal year, and to restore the operation of critical public services and programs that will be impacted by a lapse in appropriations."
"This is a sad day for America," said Democratic Senate Majority Leader Harry Reid on the Senate floor.
The shutdown is expected to place tens of thousands of federal workers on furlough, close national parks and monuments, and disrupt services like food assistance and IRS audits.
Services like benefit payments and national security operations would go on as usual, and -- because of a bipartisan measure passed by both houses of Congress and signed into law by the president late Monday -- members of the military will continue to be paid.
The new health care insurance "exchanges" mandated by the new health care law also went live even as the shutdown became official.