The Senate Finance Committee approved the USMCA Implementation Act on Tuesday by a vote of 25-3, sending it to the Senate floor for a full vote, reports Xinhua news agency.
"USMCA will bring much needed certainty, and real benefits to America's farmers, workers, and businesses," Senate Finance Committee Chairman Chuck Grassley said during the mark-up of the legislation, adding that the trade deal has the support of hundreds of organizations representing a wide range of the economy.
"The bill before us today has something in it for everyone, and it's not often that we can say that about an implementing bill," he said.
The Democratic-controlled House of Representatives last month overwhelmingly approved the USMCA after months of negotiation with the administration over issues including labour and environmental enforcement.
It's not yet clear when the full Senate will have a vote to ratify the USMCA to replace the 25-year-old North American Free Trade Agreement (NAFTA).
Senate Majority Leader Mitch McConnell had signalled that the trade deal could be voted on after the Senate concludes its impeachment trial of President Donald Trump.
While the Trump administration has touted the USMCA as pro-growth, an analysis published by the Peterson Institute for International Economics (PIIE) last month showed that the deal was "a net negative" for all three economies.
The USMCA modernizes trading rules and strengthens enforcement of labour and environmental rights, but its restrictions on auto trade and investment and on auto production "will hurt US industry", said PIIE trade economists Mary Lovely and Jeffrey Schott, authors of the analysis.
( With inputs from IANS )