CBMRJ is an Auxiliary Force and Reserve of the Brazilian Army, and is part of the Public Security and Social Defense System of Brazil.

The Military Firefighters Corps of the State of Rio de Janeiro is the oldest in Brazil.

It was founded by Emperor Pedro II of Brazil in 1856, after the incidence of numerous tragedies, such as the São João Theater fires, in 1851 and 1856.

At that time the Emperor decided to organize the Court's Provisional Fire Brigade,[1] gathering under the same administration the different sections that existed until then (in the Arsenals of War and Navy, Public Works Department and House of Correction).

In April 1860 the first regulation was published, which contained its subordination to the Ministry of Justice.