RES535 – 335 – Figure 1 shows, in flow chart form, the time sequence for the Procedure. RES535-01 FIGURE 1 Time sequence for the Procedure Bureau selects frequencies when assistance is requested by an administration Bureau carries out compatibility analysis Bureau sends the first Tentative Schedule and compatibility analysis to administrations and regional coordination groups having subscribed to this publication Closing date for receipt of amendments from administrations Bureau publishes the Schedule and compatibility analysis START Bureau validates the submissions into a consolidated schedule and carries out compatibility analysis Administrations review the Tentative Schedule, coordinate as required, for example in regional coordination groups,and submit changes to the Bureau. Bureau provides assistance to administrations upon request D – 2 months D – 2 weeks END E D D – 4 months Administrations submit in-season changes to Bureau Bureau publishes the Final Schedule one month following close of the season Bureau inserts previous schedule for those administrations not submitting a schedule. (This action is limited to two consecutive schedules)Administrations submit broadcast schedule to Bureau Bureau publishes updated Schedule and compatibility analysis every two months during the operational season based on any changes submitted by administrations D: Start of schedule E: End of schedule Bureau sends the second Tentative Schedule and compatibility analysis to administrations and regional coordination groups having subscribed to this publication Closing date for receipt of amendments from administrations for the second Tentative Schedule D – 6 weeks D – 1 month E – 3 months E + 1 month