Pilots can now fly different routes at different altitudes under instrument rules

The Federal Aviation Administration has updated the required altitudes and changeover points for certain flight routes. This means pilots flying under instrument flight rules can now use new paths and heights in specific areas.

Air traffic control is a complex system of invisible lines and boxes in the sky. Every time a new airport opens, or a new type of aircraft flies, or a new navigation system comes online, those lines and boxes need to be redrawn. This document is one of thousands of small, boring updates that keep the entire system working. It means pilots can use the most efficient routes available, rather than sticking to outdated ones.