Today Circula is the plan for the restriction and regulation of vehicular traffic.

Vehicle restriction and regulation plan.- The plan of
restriction and regulation of vehicular circulation called "Hoy Circula"
("Plan Hoy Circula"), which consists of the prohibition of circulation, within
of the restriction area defined in article 14 of these Instructions, for the
group of motor vehicles selected based on the last digit
from your plate, for three days a week, 24 hours a day (all day).