# What's a stepdown fix in a non-precision approach procedure?

Could someone explain to me what's a stepdown fix in non-precision approaches?

From the FAA's Pilot/Controller Glossary:

STEPDOWN FIX − A fix permitting additional descent within a segment of an instrument approach procedure by identifying a point at which a controlling obstacle has been safely overflown.

In other words, a step down fix tells you "you've passed an obstacle, so you can now descend further".