A320 captain reported ground gate return to correct dangerous goods loading configuration issue.

Attributes
ACN	1687344
Time
Date	201909
Local Time Of Day	1801-2400
Place
Locale Reference	ZZZ.Airport
State Reference	IL
Environment
Flight Conditions	VMC
Aircraft 1
Make Model Name	A320
Operating Under FAR Part	Part 121
Flight Phase	Taxi
Flight Plan	IFR
Person 1
Function	Captain Pilot Flying
Qualification	Flight Crew Instrument Flight Crew Air Transport Pilot (ATP) Flight Crew Multiengine
Experience	Flight Crew Last 90 Days 96 Flight Crew Type 1478
Events
Anomaly	Deviation - Procedural Hazardous Material Violation Deviation - Procedural Published Material / Policy

Narrative:

During preflight all notifications of dangerous goods (dg) indicated that we had no dgs. After pushback and taxi-out we were notified that we had to return to gate because dgs were loaded improperly (they had to have 15 bags surrounding them). Surprised that we had any dgs on board; we returned to the ramp. When I queried operations they said they were loaded last minute. Ramp personnel reloaded the aft cargo pit...we taxied out again; got the final numbers; and took off. In my haste to depart; during the climb; I realized that we still had no notification of the dgs. I sent a message to load planning via ACARS. I received a message back from dispatch saying that the dgs do not meet the threshold for notification. The flight continued with no further issue. I am concerned that if there are dgs that do not meet a threshold for notification then why did it have to be loaded in a certain way.

Original NASA ASRS Text

Title: A320 Captain reported ground gate return to correct Dangerous Goods loading configuration issue.

Narrative: During preflight all notifications of dangerous goods (DG) indicated that we had no DGs. After pushback and taxi-out we were notified that we had to return to gate because DGs were loaded improperly (they had to have 15 bags surrounding them). Surprised that we had any DGs on board; we returned to the ramp. When I queried operations they said they were loaded last minute. Ramp personnel reloaded the aft cargo pit...we taxied out again; got the final numbers; and took off. In my haste to depart; during the climb; I realized that we still had no notification of the DGs. I sent a message to load planning via ACARS. I received a message back from Dispatch saying that the DGs do not meet the threshold for notification. The flight continued with no further issue. I am concerned that if there are DGs that do not meet a threshold for notification then why did it have to be loaded in a certain way.

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.