The Department of Transportation, for example, said that all air traffic control services would continue without interruption. Amtrak doesnt expect disruption of passenger railroad service, either.
Still, nearly a third of the Transportation Departments workforce is expected to be furloughed -- 18,481 of the agencys 55,468 employees, according to the departments 32-page contingency plan. On-call accident investigations, hazardous materials safety inspections and airport planning would continue, but audits, security background checks and employee drug testing would stop.
For the Yankee Freedom ferry, voyages would continue through Wednesday -- mainly to evacuate campers and others who need to leave the island.
In Broward, the tourism bureau planned to steer nature groups to areas outside of the Everglades National Park, including the Billie Swamp Safari on the Big Cypress Seminole Indian Reservation.
But while there may be alternatives, the countys tourism director worries about the broader impact a shutdown will have on consumers travel budgets.
If theyre not comfortable, they wont make plans, said Nicki Grossman, head of the Greater Fort Lauderdale Convention and Visitors Bureau. Theyre going to stay at home, and theyre going to worry about the economy.
McClatchys Kevin Hall contributed to this report.
Heres how a shutdown might affect some government services:
• All Social Security and Supplemental Security Income payments to beneficiaries will continue without interruption. Field offices would remain open. New and replacement Social Security cards and proof-of-income letters would not be issued, nor would replacement Medicare cards. The Social Security Administration plans to furlough just over 18,000 workers, but its core services would continue.
• The Medicare program would continue uninterrupted, but if a shutdown lasts more than a month, reimbursements to doctors and hospitals could be delayed. A shutdown also would not affect the Tuesday launch of the new federally run insurance marketplaces in 30-plus states as part of the Affordable Care Act, also called Obamacare.
• The Internal Revenue Service would continue its automated tax collection process, but many tax-processing functions would grind to a halt, including tax refund payments. The IRS said only 8,826 out of 94,516 agency employees would be working under a contingency plan that keeps computers running so that electronic returns can continue to be received.
• Most federal education spending already happened before the start of the 2013-14 school year. Pell Grants and other forms of aid for college students also would be unaffected. But federal Head Start programs that get their funds on Oct. 1 would have to scramble for alternative sources of money or face closure, affecting about 19,000 children, according to the National Head Start Association. Head Start is the federally supported preschool program for low-income children.
• The U.S. Postal Service doesnt rely on congressional appropriations for its budget, so post offices nationwide would be open for business as if any other day of business.
• Most of NASA would be shut temporarily, President Barack Obama said Monday, except for space agency employees providing support to the astronauts orbiting the Earth in the space station.
• The arts would take a hit with closures of everything from the Smithsonian Institutions 19 museums and the National Zoo in Washington, to the 13 presidential libraries operated by the National Archives and Records Administration.
• The National Mall, often called the nations front lawn, would be the most visible sign of tourist-shock, where the Smithsonians marquee museums, such as the National Air and Space Museum and the National Museum of the American Indian would be shuttered. In addition, the National Gallery of Art and its well-known East Wing, not part of the Smithsonian system, also would be closed.
• Tours of the U.S. Capitol would not be allowed unless conducted by members of Congress, the sergeant at arms said in a statement Monday.
• The iconic Statue of Liberty in New York Harbor is part of the National Park Systems 401 national parks that would also close, including Philadelphias Independence Hall and the Liberty Bell, and Yellowstone National Park, where guests in hotels and campgrounds would have 48 hours to leave.