In Florida, which of the following is required to be installed on airboats?

In Florida, the requirement for airboats is that they must be equipped with an automotive style exhaust muffler. This is essential for reducing noise levels and complying with state regulations designed to protect the environment and wildlife, particularly in sensitive ecosystems such as wetlands where airboats are often used. The automotive style exhaust muffler effectively mitigates sound emission, making airboat operations more manageable in areas that are vital for local wildlife and ecosystems.

In the context of other options, while standard mufflers and marine grade exhaust systems are important for various types of boats, they do not specifically meet the criteria set for airboats in Florida. The absence of a muffler would not fulfill the legal requirements for operating an airboat in the state, as noise reduction is a priority for boating regulations in order to minimize disturbance to wildlife and the surrounding environment.