Mexican trucks now allowed on U.S. highways; smog impact unknown

Cargo trucks from 100 Mexican companies will now be allowed beyond the current 25-mile border zone. The 1-year test program was announced Friday by U.S. and Mexican leaders. Officials don't know the impact on air quality or safety, but Senator Dianne Feinstein will open an inquiry next month. Democrats say they question the Bush administration's claims that the trucks will meet safety requirements. Southern California officials worry that Mexican diesel fuel is not ultra-low sulfur as required here and will add to smog problems when trucks cross into the U.S. If the program is successful, then all Mexican trucks will have access to the U.S. highways.

[Source: Lisa Friedman / Whittier Daily News]