Glideslope Intercept
Altitude
The minimum
altitude to intercept the glideslope/path on a precision approach.
The intersection of the published intercept altitude with the
glideslope/path, designated on Government charts by the lightning
bolt symbol, is the precision FAF; however, when the approach chart
shows an alternative lower glideslope intercept altitude, and ATC
directs a lower altitude, the resultant lower intercept position is
then the FAF.