Which are coast guard approved visual distress signals?

Coast Guard approved visual distress signals include flares, which can be aerial or hand-held, as well as flag signals such as the International Code flag "November" over "Charlie" (N over C). Additionally, a distress signal can be made using a signal mirror or by displaying a bright light in the daytime. Other approved options include an orange smoke signal and a combination of these methods to indicate distress effectively. Always ensure that these signals are in good working condition and comply with local regulations.