The South Bay's 'West Valley' corridor is not the place to break any traffic laws today.
The Santa Clara County Sheriff's office and other law enforcement agencies are conducting a mass crackdown on violators in Cupertino, Saratoga and Los Altos Hills.
Officers are issuing citations or warnings for violations including speeding, running red lights, crosswalk infractions and commercial vehicle violations.
Some of the agencies involved in the rotating program are the police agencies in those cities as well as the CHP, Santa Clara, Sunnyvale and Milpitas police departments.
The crackdown is ongoing until Wednesday afternoon.