Mexico is protesting an added provision to the recently signed trade agreement between itself, the U.S. and Canada that would station U.S. officials in Mexico to track the enforcement of its labor laws and ensure compliance with the new deal.

The version of the U.S. Mexico Canada Agreement (USMCA) President Trump Donald John TrumpBiden says voters should choose who nominates Supreme Court justice Trump, Biden will not shake hands at first debate due to COVID-19 Pelosi: Trump Supreme Court pick 'threatens' Affordable Care Act MORE sent to Congress Friday to be ratified included the provision, but the version of the deal that Mexico agreed to and signed did not, The Wall Street Journal reports.

Under the provision, the U.S. could station up to five attachés in Mexico, something that Jesús Seade, Mexico's head trade negotiator isn't pleased about.

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"Of course we don’t agree,” Seade said during a press conference.

According to the Journal, enforcement mechanisms such as the provision were critical in securing Democratic support for USMCA, which replaces NAFTA.

Seade also wrote to U.S. Trade Rep. Robert Lighthizer Robert (Bob) Emmet LighthizerWhiskey, workers and friends caught in the trade dispute crossfire GOP senator warns quick vote on new NAFTA would be 'huge mistake' Pelosi casts doubt on USMCA deal in 2019 MORE, saying that the U.S. is attempting to do more than it needs to in enforcing provisions that were agreed upon by all parties.

He also said that he plans to travel to Washington Sunday to talk with Lighthizer and other U.S. lawmakers. Nonetheless, Seade made it clear that U.S. officials would not be allowed to conduct inspections under Mexican law.

Lighthizer's office did not respond to the Journal's request for comment.