JUDITH DIAZ vs. EXCELL SECURITY, INC., XL STAFFING, INC., XL CONSTRUCTION STAFFING; CALIFORNIA INSURANCE GUARANTEE ASSOCIATION for ULLICO CASUALTY COMPANY, in liquidation by its servicing facility, SEDGWICK CLAIMS MANAGEMENT SERVICES; SPARTA INSURANCE COMPANY by GALLAGHER BASSETT

The Workers' Compensation Appeals Board affirmed a prior finding that Sparta Insurance Company provided workers' compensation coverage for Judith Diaz. The Board found that Sparta's policy with Excell Security, Inc. did not exclude Diaz from coverage, despite Excell also having a policy with Ullico Casualty Company. Therefore, Sparta is considered "other insurance" and liable for applicant's benefits, upholding the Arbitrator's initial decision.