Banco de México filed a case before the Mexican Supreme Court over a piece of legislation forwarded under new President Andrés Manuel López Obrador that proposes to cap public workers' salaries.
The monetary authority said they filed the case on the concern that it would impede on the monetary authority's autonomy under the constitution.
The proposal would limit employees' salaries to the same level as that of Lopez Obrador, who will earn 40% of what former President Enrique Peña Nieto earned, or about $5,500 monthly, Reuters wrote separately.
The central bank added that several of its own workers similarly filed their own cases over concern of the new law. The country's anti-trust agency also filed a case earlier this week, Reuters added.
AMLO, as the president is known, won on a platform of austerity measures for the government in elections in July 2018. He took office in December that year.