Yes, Florida and California are both members of the DLC (Drivers License Compact) so if your husband pleads guilty and is convicted of the California traffic offense then the CA courts will inform the Florida Department of Highway Safety and Motor Vehicles (HSMV).

The FL HSMV states that if you carry a Florida license and receive a ticket in another state that the HSMV will be informed and the citation information will be added to your driving record.

Besides the CA violation information being included on your FL driving history, you will receive points on your FL license if Florida statutes find the violation to be points accessible. So if your husband was cited for a usual offense such as speeding or running a light then he would get points assessed on his Florida license.

The Florida HSMV site also notes that FL law does not allow any school or program to remove points for a ticket received in another state. So your husband will be unable to take a Florida driving class to cancel the ticket or its points. Your husband would thus need to check with the California court listed on his citation to see if there is traffic school available there to take and that would keep this ticket from being transferred to his FL driving record.

If the traffic ticket is reported to Florida and put on your husband's driving record, it could affect your insurance rates. Since insurance companies rating systems differ, you will need to contact your insurance company to find out about their rating system and if this CA traffic infraction will raise your premiums.