President Michelle Bachelet must still approve the act.
The measure was introduced after an uncontrolled 60-metre eruption of steam occurred at El Tatio during geothermal exploration late last year.
At the time, the regional environment commission in Chile, Corema, called for Geotérmica del Norte, jointly owned by Chilean State holdings and Enel, an Italian consortium, to stop work at the site, and opened an inquiry into the matter.
