Navigational data follows the same schedule as the FAA cycle. Typically the data is available for download 24 to 48 hours before the effective date of the data. The cycle interval is dependant on the data product which can be 28 days, 56 days, 6 months, 1 years or 2 years. Example IFR Lo/Hi Enroute charts are every 56 days.
FAA's Dates of Latest Editions (DOLEs)
To determine whether you have the most current edition chart or publication or to find out when the next edition will be effective select the appropriate Dates of Latest Edition from the list below: