Flight Crew Instrument; Flight Crew Air Transport Pilot (ATP); Flight Crew Multiengine
Communication Breakdown; Situational Awareness
Deviation / Discrepancy - Procedural Clearance; Deviation / Discrepancy - Procedural Published Material / Policy; Ground Incursion Taxiway
Flight Crew Requested ATC Assistance / Clarification
Chart Or Publication; Procedure
After pushing back and ready to taxi; informed by ground that Tower wanted us to call them. Tower was concerned that we may have pushed back onto the taxiway from [gate] without clearance. We had followed procedures outlined on MIA JEP CO Airport Info. In brief; procedures indicate to call 'Miami Gates' for pushback from [parking] then contact ground for taxi. At this time; I can specifically recall what Gates said. I do know there was nothing out of the ordinary; and nothing said seemed different than expected. We pushed onto taxiway; started engines without incident. Upon requesting taxi clearance we were asked to contact Tower by phone. The conversation was informative. We were told we should have obtained clearance from Ground for push; Miami Gates was not authorized to issue push clearance. I explained that I believed we were clear to push; but that I may have been in error. Tower said that there was no issue. The identified JEP CO page is misleading. Even though [the gate] isn't specifically identified; [other spots] are. [The other spots] are located in the same general area; so I used those procedures. The procedures seem unambiguous and nowhere indicate to call Ground for pushback clearance. The note to view positive apron control and pushbacks doesn't give any further guidance for [these] spots. Update identified CO page to reflect proper procedure.
Air carrier Captain reported no published procedure for pushback from gate.