The acronym SIDS stands for which instruction related to departures?

• A. Significant weather prognostic
• B. SIGMET
• C. See standard instrument departure procedures
• D. Service ceiling

Answer: (C)

Understanding what SIDS refer to helps you see why this is the correct choice. SIDS stands for Standard Instrument Departure Procedures, the published instructions you follow to depart an airport under instrument flight rules. These procedures lay out the initial heading to fly, any altitude or speed restrictions, and the specific route to join the en route structure, all designed to ensure obstacle clearance and efficient air traffic flow as you climb away from the runway. They are the formal departure instructions pilots use when there is an instrument departure path, versus other items that deal with weather or general performance like SIGMETs or service ceilings. The phrase in this option matches the concept of an official, published departure procedure you refer to on IFR departures.