Several complaints regarding Mexican workplace abuses related to labour standards practiced in the south of the border enshrined in the United States-Mexico-Canada Agreement (USMCA) have been filed. Since May 2021, five complaints have already been submitted, all related to the automotive industry.

The first labour rights petition brought an objection against Tridonex factories in Matamoros, stating that it has denied workers the right to independent representation. Later in 2021, US legislators also pressured Mexican authorities to order the General Motors (GM) Co union in the city of Silao to repeat a worker vote, alleging that abuses, such as the destruction of some ballots and the refusal to give labour inspectors documentation of the vote tally, happened and that it violates USMCA determinations.

In May 2022, the trade union SNITIS requested that US labour authorities, also under the terms of the USMCA, investigated alleged abuses of workers' rights at Panasonic's auto parts plant in Reynosa. According to SNITIS, the company allegedly violated the agreement in 2020 when it signed a union contract without the workers' knowledge and fired dozens of employees.

In early June, US asked for another investigation into alleged workers' rights violations at a Stellantis auto parts plant, examining possible abuses at Teksid Hierro de Mexico in the northern border state of Coahuila. US trade representatives argued that they were concerned that workers had been denied collective bargaining rights in connection with an "invalid" contract with the Confederation of Mexican Workers (CTM).

A couple of weeks afterwards, the fifth petition under the USMCA was filled by workers at VU Manufacturing, alleging that the Michigan-based auto-parts maker was pushing them to join a union friendly to the company.

Labour Ministry also stated it intends to prohibit subcontracting of day laborers in the avocado and berry industries to ensure companies comply with USMCA requirements.