Tougher regulations affect trucking industry

FRESNO, Calif.

Six months ago, California started requiring refrigerated trucks to have engines that date back no further than seven years. Truckers say with the new rules, there are a lot fewer vehicles working in California because many don't meet the standards.

Another worry is a new federal rule that goes into effect next month. That increases the number of hours trucks must rest before hitting the road. They say being forced to sleep more, might cost them hours or even days on arrival.

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