Mexican trucks entering California will soon face the same air pollution standards as their American counterparts, the California Air Resources Board ruled this week.

Following a public hearing, the CARB board of directors voted Thursday, Jan. 26, to require the Mexican trucks to meet Environmental Protection Agency pollution standards.

Although a 2004 state law already requires all trucks in the state to carry a sticker certifying that their engines meet emissions requirements, no fines were attached to the violation. Now, inspectors will be able to fine illegal operators up to $300 for a first offense, according to CARB’s Web site.