From a press release issued by the AMA:

CALIFORNIA ROLLS BACK ON OFF-ROAD MOTORCYCLE CONVERSION BAN

The California Department of Motor Vehicles has rescinded a memo it issued recently issued that stopped allowing the conversion of off-road motorcycles built since 1978 into street-legal or dual-sport machines.

But the department said it would issue new rules soon.

When the department released the memo in July stopping the conversion of certain off-road motorcycles to street-legal and dual-sport use, it represented a major change in policy for the agency. That’s because the DMV’s own registration manual, and a California Highway Patrol bulletin, spelled out procedures for legally making such conversions.