RIVERSIDE, Calif. -

Truckers traveling through Riverside County Tuesday could be stopped and their rigs checked for emissions control compliance, according to state officials.

   Representatives from the California Air Resources Board, along with California Highway Patrol officers, will be conducting random checks of big rigs going north and south on Interstate 15, according to CARB officials. 

   ``The effort is part of a stepped-up enforcement campaign to ensure that clean air requirements are understood, and that big rig drivers are in compliance with the laws designed to improve air quality in the Inland Empire and beyond,'' said Karen Caesar of the CARB. 

   She said heavy-duty diesel rigs will be the primary targets.  Inspections  will conducted in a designated pullout along I-15 during the morning hours.