What ventilation system is required for inboard boats?

Inboard boats require a ventilation system that includes both natural and forced ventilation to ensure proper airflow and reduce the risk of fuel vapors accumulating in the engine compartment. Typically, this involves the installation of intake and exhaust vents to allow fresh air in and exhaust harmful gases out. Additionally, powered blowers may be used to enhance air circulation, especially when the engine is running or after fueling. Regular maintenance of these systems is essential for safety and compliance with maritime regulations.