"I commend Congress for giving families and businesses the help they deserve, and I will sign this bill into law as soon as it hits my desk," Obama said in a statement late Monday.
Despite opposition from conservatives concerned about adding billions of dollars more to the nation's debt, the Senate cleared the long-delayed bill, 62-36, after House Republicans had stripped it earlier this month of spending unrelated to disasters. All 36 votes against the bill were from Republican senators.
"This is a huge relief," said Sen. Charles Schumer, D-N.Y., noting the vote came 91 days after Sandy struck.
The House passed the bill two weeks ago. Lawmakers say the money is urgently needed to start rebuilding homes, businesses, public transportation facilities and other infrastructure damaged by the Oct. 29 storm, one of the worst to strike the Northeast.
Sandy roared up the East Coast and is blamed for more than 130 deaths and tens of billions of dollars in property damage, particularly in New York and New Jersey. The measure is aimed primarily at helping residents and businesses as well as state and local governments rebuild.
The biggest chunk of money is $16 billion for Housing and Urban Development Department community development block grants. Of that, about $12.1 billion will be shared among Sandy victims as well as those from other federally declared disasters in 2011-2013. The remaining $3.9 billion is solely for Sandy-related projects.
More than $11 billion will go to the Federal Emergency Management Agency's disaster relief aid fund for providing shelter, restoring power and other storm-interrupted utility services and meeting other immediate needs arising from Sandy and other disasters. Another $10 billion is devoted to repairing New York and New Jersey transit systems and making them more resistant to future storms.
Sen. Dan Coats, R-Ind., said Republicans weren't seeking "to undermine" help for Sandy victims but instead were trying to make sure that the money was actually being spent on emergency needs.
"We're simply trying to say we need some standards," Coats said.
Earlier in January, Congress approved and Obama signed a $9.7 billion bill to replenish the National Flood Insurance Program, which has received well over 100,000 flood insurance claims related to Sandy. Added to the new, $50.5 billion package, the total is roughly in line with the $60.4 billion that Obama requested in December.
The aid package was greased for passage before the last Congress adjourned and the new one came in on Jan. 3. But Speaker John Boehner refused to bring it to the floor after two-thirds of House Republicans voted against a "fiscal cliff" deficit-reduction deal raising taxes on couples making more than $450,000 a year while deferring some $24 billion in spending cuts to defense and domestic programs.
The ruckus after the Senate had passed an earlier $60.4 billion Sandy relief package by a nearly 2-to-1 margin on Dec. 28 exposed deep political divisions within Republican ranks. "There's only one group to blame for the continued suffering of these innocent victims, the House majority and their speaker, John Boehner," Republican New Jersey Gov. Chris Christie fumed at the time.
Top House Republicans responded by bringing new Sandy aid legislation to the floor under ground rules designed to win over as many Republicans as possible while retaining support from Democrats eager to approve as much in disaster aid as possible.
GOP leaders cut spending in the Senate bill unrelated to disasters. One would have transferred $1 billion for training Iraqi policemen to instead be used to bolster security at U.S. diplomatic missions. The shift in money followed a Sept. 11 terrorist attack on the American consulate in Benghazi, Libya, where the U.S. ambassador and three other Americans were killed.
Also deleted were $188 million for an Amtrak expansion project that included new, long-planned tunnels from New Jersey to Penn Station in Manhattan, and another $150 million for fisheries disasters that states such as Alaska and Mississippi could have shared.
After all the cost-cutting, 179 House Republicans still voted against the disaster aid package with only 49 favoring it. GOP leaders had to rely on yes votes from 192 Democrats to pass it.
As with past natural disasters, the Sandy aid bill is not offset with spending cuts, meaning the aid adds to the deficit. The lone exception is an offset provision requiring that $3.4 billion for Army Corps of Engineers projects to protect against future storms be covered by an equal amount of unspecified spending cuts in other programs before next October.
The Senate on Monday rejected, 35-62, an attempt by Sen. Mike Lee, R-Utah, to amend the final package Monday with a provision to cut federal programs across the board by one-half of 1 percent through 2021 as a way to prevent the disaster aid from swelling the U.S. debt.
As of Monday, FEMA said it spent $3.3 billion in disaster relief money for shelter, restoring power and other immediate needs arising from the storm.
New York, New Jersey, Connecticut, West Virginia, Virginia, Maryland, New Hampshire, Ohio, Delaware, Rhode Island, Pennsylvania, Massachusetts and the District of Columbia have shared that money.