Garmin GXM 40 - Manual (Page 44)

4 GXM 40 Owner’s Manual
Appendix
DAFIF product. This product was developed using DAFIF,
a product of the National Geospatial-Intelligence Agency.
TFR Data
Temporary Flight Restriction (TFR) data is provided by the
FAA and may not be updated outside of normal business
hours. Confirm data currency though alternate sources and
contact your local FSS for interpretation of TFR data. This
product has not been endorsed or otherwise approved by
the National Geospatial-Intelligence Agency, or the United
States Department of Defense (10 U.S.C. 425).