The following is a CBSA message (EDI12-033)
Please be advised that effective August 25, 2012, the requirement to submit the UN prefix for the dangerous goods code transmitted in the cargo maps for ACI Air, ACI Marine, ACI eManifest Highway and CSA (Customs Self Assessment) Highway, will be removed.
Effective this date, the dangerous goods code will be numeric 4 (n4) only. The ACI Air, Marine, eManifest Highway and CSA Electronic Commerce Client Requirements Documents (ECCRD) will be updated accordingly.
If you have any questions concerning this change in policy, please contact Commercial Unit, Advance Information and Programs Division at firstname.lastname@example.org.
For any question concerning EDI formatting for ACI Air, ACI Marine and CSA Highway, please contact the Electronic Commerce Unit at 1-888-957-7224, option 1.
For any question concerning EDI formatting for ACI eManifest Highway, please contact the Technical Support Unit at 1-888-957-7224, option 2.