Standard Instrument Procedures (SIPs) are established guidelines that pilots follow when flying under instrument flight rules (IFR). These procedures ensure safe and efficient navigation and communication with air traffic control (ATC) during various phases of flight, including departures, arrivals, and approaches. SIPs include specific routes, altitudes, and instructions for pilots to follow, which help maintain safe separation between aircraft. They are designed to minimize the risk of accidents and enhance the overall efficiency of air traffic management, especially in busy airspace.