We used to have a legend in our AIP charts that said what gradient was for terrain reasons and what gradient for ATS purposes. One read (maybe erroneously) "PDG" and the other one read (dead on) ATS. Nice piece of info. Today's format only says something like "X.X% for obstacles until xxxxft then X.X%". Haven't seen this in the Jepp format charts though.
Yellow box reads: "Max 185 KIAS until turn is complete. Minimum PDG due to obstacles 5.7% until 10000, then 3.3%"
EDIT: Ah, turns out they still publish that, but apparently only for Bogota. Bottom part of the chart contains the goodies. There's still a note there, similar to the chart above, that reads "Maintain 8.2% until 9200ft then 6.7 until KORKI". Being 6.7% the gradient for obstacles, looks like it's basically the same as the previous chart, only this one will require a gradient above standard for obstacle clearance and they're telling you these "categorised" PDG's (they're both PDGs, aren't they?)