Cal. Water Code § 13900

The Legislature finds and hereby declares that discharges from houseboats in or on the waters of the state constitute a significant source of waste as defined in Section 13050; that discharges of waste from houseboats in or on the waters of the state may impair the beneficial uses of the waters of the state to the detriment of the health, safety, and welfare of the people of the state; and that the discharges of waste from houseboats are not adequately regulated. The Legislature therefore declares that the people of the state have a primary interest in the coordination and implementation of the regulation of discharges of waste from houseboats on or in the waters of the state.