C-55 — Water Conditioning Contractor
Compliance obligations for California C-55 (Water Conditioning Contractor) contractors. Keep every deadline tracked to stay licensed and avoid penalties.
Compliance Obligations
| Obligation | Agency | Cycle | Fee |
|---|---|---|---|
| CSLB Contractor License Renewal | Contractors State License Board (CSLB) | 2 years | $450 |
| Contractor License Bond | Contractors State License Board (CSLB) | continuous | $25,000 |
| Bond of Qualifying Individual | Contractors State License Board (CSLB) | continuous | $25,000 |
| LLC Employee/Worker Bond | Contractors State License Board (CSLB) | continuous | $100,000 |
| Workers' Compensation Insurance | Department of Industrial Relations (DIR) | annual | Varies by classification and payroll |
Workers' Compensation
Workers' comp is required for C-55 contractors.
Mandatory date: 2028-01-01 (Phase 2). Contractors with employees must carry workers' compensation insurance at all times.
Scope of Work
View full statutory scope of work ▼
A water conditioning contractor installs water conditioning equipment with the use of only such pipe and fittings as are necessary to connect the water conditioning equipment to the water supply system and to by-pass all those parts of the water supply system within the premises from which conditioned water is to be excluded.
Track your C-55 deadlines automatically.
PermitCal pre-loads every compliance deadline for C-55 (Water Conditioning Contractor) contractors. Join the waitlist.
City Business Licenses
In addition to state requirements, you may need a city business license.