The LII Legislature of the Congress of the Union, the 52nd session of the Congress of Mexico, met from 1 September 1982 to 31 August 1985 in the newly inaugurated Legislative Palace of San Lázaro. The members of both chambers â 64 senators and 400 deputies â were elected in the general election held on 4 July 1982.
On its first day of sessions, the 52nd Congress heard the sixth and final State of the Nation report of President José López Portillo in which, amidst a massive economic and currency crisis, he announced the nationalization of the country's private banks and imposed stringent exchange controls.
In the 4 July general election, two senators were elected from each state, plus two from the Federal District, for a total of 64.
The 4 July election returned 400 members of the Chamber of Deputies: 300 from single-member constituencies and 100 from party lists in four electoral regions:
For the 1982 election, the country was divided into four electoral regions (), with each returning 25 deputies.