Los Angeles (AP) Millions of California motorists are trying to get used to driving empty-handed, at least where cell phones are concerned.

A new law requires hands-free devices for those behind the wheel, but early enforcement depends on the police agency.

Police in San Diego and Oceanside are giving motorists a one-month grace period. But the California highway patrol and other agencies are already writing tickets.

CHP officers in auburn witnessed 47 cell-phone violations in a five-hour period yesterday and issued 20 citations. Some people were let go with warnings so as not to further clog traffic.

California motorists who waited until the last minute have been rushing to purchase hands-free devices.

The law requires drivers over 18 to use a hands-free device. A second law bars drivers under 18 from all wireless use while driving.