The Advanced Planning Webinars occur the day before using the PERTI process described in the documentation. The PERTI Team holds a telcon/webinar each day, late in the afternoon, for the next day. All traffic managers, airline representatives, and other decision-making representatives are invited so they can plan their operation for the next day(s). The PERTI Team then hands off the PERTI Plan to the Command Center planners, who use it as their road map looking ahead at the next 24-48 HRS. The Command Center Planners then hold the Strategic Planning webinars (also attended by those same parties list above), which begin each morning at 6AM and repeat every two hours throughout the day, updating the planned traffic initiatives as conditions change.