What is required to be carried aboard a 25 foot power boat when operating at night?

When operating a 25-foot powerboat at night, it is required to carry navigation lights that are properly functioning, including a white stern light and red and green sidelights. Additionally, a sound signaling device, such as a horn, must be on board. It's also advisable to have a means of communicating, such as a VHF radio, and to ensure that all safety equipment is accessible and in good condition.