The 310-page revised accord was approved unanimously by the lower house yesterday, which voted a day after the Senate approved the same text 75-0 following a protest walkout by the opposition led by former President Alvaro Uribe.
The accord introduces some 50 changes intended to assuage critics who led a campaign that saw Colombians narrowly reject the original accord in a referendum last month. President Juan Manuel Santos has said there won't be a second referendum.
But the FARC wouldn't go along with the opposition's strongest demands - jail sentences for rebel leaders behind atrocities and stricter limits on their future participation in politics.
"There needs to be a balance between peace and justice, but in this agreement there's complete impunity," Uribe, now a senator, said during Tuesday's heated debate. Other senators accused him of standing in the way of a peace deal that he pursued with the FARC as president in 2002-10.
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"Tomorrow a new era begins," Santos said Tuesday, celebrating the Senate's endorsement and the expected approval by the lower house.
But the rebels insist that their troops won't start demobilizing until lawmakers pass an amnesty law freeing some 2,000 rebels in jail.
"D-Day starts after the first actions are implemented," the rebel leader "Pastor Alape," a member of the FARC's 10-member secretariat, told foreign journalists last week after the new accord was signed. "The president unfortunately has been demonstrating an attitude that creates confusion in the country."
But the referendum loss has left the status of his fast-track authority in doubt, awaiting a ruling by the constitutional court. Experts say a solid pro-peace coalition could crumble if implementation drags on and butts against the political maneuvering for the 2018 presidential election.
Beyond the legal hurdles, there is also concern FARC fighters will wind up joining criminal gangs rampant throughout the country or the much-smaller rebel National Liberation Army, which for months has been playing cat and mouse with the government over opening a peace process of its own. Yesterday, both sides said they would delay until January any decision about when to start talks.
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