Anti-government protests against the US-backed government of President Rodrigo Paz have been ongoing for weeks. The dissatisfaction is related to the economic crisis and hardship in the Latin American country.
Riot police have, several times and most recently on Saturday, acted against demonstrators and carried out operations to clear illegal roadblocks set up as part of the protests.
"The law has now been passed. It will be transferred to the executive branch," said Roberto Castro, the speaker of the lower house, after a debate that lasted into the night in La Paz.
Roadblocks have repeatedly hindered transport to and from the country's major cities.
