2100 ft. Minimum Altitude Restriction

The 2100 indicates an Altitude restriction placed at the Final Approach Fix, ZACKS INT

This simply means that before we approach this point, we must be within the Altitude restriction given.

It does NOT apply when we are approaching ZACKS from the WEST since we would be on Procedure Track 099. and flying outbound to perform a Procedure turn inbound.
 

Possible Altitude Restrictions:

ALTITUDE
5500 2300
mandatory altitude minimum altitude
4800 2200
maximum altitude recommended altitude