CA Lab Code Section 5275

(a)

Disputes involving the following issues shall be submitted for arbitration:

(1)

Insurance coverage.

(2)

Right of contribution in accordance with Section 5500.5.

(b)

By agreement of the parties, any issue arising under Division 1 (commencing with Section 50) or Division 4 (commencing with Section 3200) may be submitted for arbitration, regardless of the date of injury.