Final answer:
NOTAMs contain current notices to airmen that are considered essential to the safe operation of aircraft.
Step-by-step explanation:
NOTAMs contain current notices to airmen that are considered essential to the safe operation of aircraft. These notices provide vital information about temporary hazards, changes to navigational aids, airspace restrictions, and other important updates that pilots need to be aware of. By regularly checking NOTAMs, pilots can ensure they have the latest information to make informed decisions and maintain safety during their flights.