Cal. Code Regs. tit. 2, § 1053.5
Salaries and wages
Office expense
Payroll burden
Operating supplies
Purchases for resale
Professional services
Advertising and promotion
Outside services
Bad debt expense
Rents and leases
Communications
Repairs and maintenance
Depreciation and amortization
Taxes and assessments
Dues and subscriptions
Travel
Education
Utilities
Elections
Expenses applicable to prior years
Insurance
Interest
Other
Judgments and damages
Allocated expenses