[1] Created alongside the confederate state, its capital was Cochabamba.

Cochabamba sent deputies to the Congress of Tapacarí in June 1836, where the Bolivian government, under the command of General Andrés de Santa Cruz agreed that after the military intervention in Peru, give recognition to the creation of the Peruvian-Bolivian Confederation.

[2] The Fundamental Law of 1837, signed in the city of Tacna, with the approval of the self-proclaimed supreme protector Andrés de Santa Cruz, recognized Cochabamba as a founding department of the Confederation.

[3] Once the Peru-Bolivian Confederation was dissolved, the department of Cochabamba was the only one in the extinct country that maintained its territorial limits granted during the confederate period.

The governor was obliged to elect representatives of his department to participate in congressional meetings, which were ordered by the president of the Bolivian State.