Narrative:

We received clearance from ramp to push to spot 'xy'. Before pushing; we also contacted clearance delivery with our squawk code and departure instructions as requested in our pre departure clearance. Soon after being pushed to spot 'xy'; we contacted ground for taxi. While taxiing; ground control gave us a phone number and told us to call tower.once on the phone; tower informed us that at the gate we pushed back from; we were 'supposed to contact ground before pushing; because spot 'xy' is on an active taxiway.' the [person] on the phone then went on to say that he would not violate us and just give us a 'warning'.after hanging up the phone; we reviewed the charts again and nowhere does it say to ever contact ground before push; nor does the taxi diagram show spot 'xy' on an active taxiway.the cause of this event was us (the pilots) simply not being aware that were supposed to contact ground before push. The main cause is the absence of this information in any of the charts for the airport.another contributing factor is that I have only been to this airport a handful of times and it was also the captains first time there.the only suggestion I have to avoid this event from happening again is to have this information published in the charts for this airport.

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Original NASA ASRS Text

Title: ERJ-175 flight crew reported communication breakdown with Ground Control regarding Procedures & Airport charts.

Narrative: We received clearance from ramp to push to spot 'XY'. Before pushing; we also contacted clearance delivery with our squawk code and departure instructions as requested in our PDC. Soon after being pushed to spot 'XY'; we contacted ground for taxi. While taxiing; ground control gave us a phone number and told us to call tower.Once on the phone; tower informed us that at the gate we pushed back from; we were 'supposed to contact ground before pushing; because spot 'XY' is on an active taxiway.' The [person] on the phone then went on to say that he would not violate us and just give us a 'warning'.After hanging up the phone; we reviewed the charts again and NOWHERE does it say to ever contact ground before push; nor does the taxi diagram show spot 'XY' on an active taxiway.The cause of this event was us (the pilots) simply not being aware that were supposed to contact ground before push. The main cause is the absence of this information in any of the charts for the airport.Another contributing factor is that I have only been to this airport a handful of times and it was also the captains first time there.The only suggestion I have to avoid this event from happening again is to have this information published in the charts for this airport.

Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.