Dangerous Goods IDOCS (E1EDD10 Segment)

I have not worked with dangerous goods previously, but have come up with the following situation for my client.

The client was initially not getting TDG data for Canada to Canada shipments.  So I configured the validity area to include Canada.  When tested this is now showing the TDG in segment E1EDD10 as expected.

Next, we tested Canada to US shipment.  The IDOC now has DG data for TDG (Canada) and DOT (US).  It contains two E1EDD10 segments.  According to the client it should only contain the DOT data as the shipment is going to the US.  The TDG is not required.

Question - Is there a way to limit the DG IDOC in this scenario (Canada to US) so it will only display the DOT dangerous goods and the TDG dangerous goods are not displayed.

Thanks,

Jeff.