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Compliance software for dangerous goods transport by sea


Hazcheck Restrictions


  • Participating lines have instant access to continually updated partner line restrictions
  • Reduced administration time for DG departments collecting and monitoring changes with partner lines
  • Prohibitions and restrictions searchable by UN class, UN number or Proper Shipping Name
  • Includes IMDG Code lookup to check classification, packaging or other criteria
  • Integrates with other Hazcheck solutions to include validation of mixed DG within the container for compliance with IMDG Code compatability criteria and 49 CFR checks for US shipments made under IMDG Code requirements


As with most shipping trades, container ship operators charter space in their vessels to 'partner' lines to offer customers a wider delivery network than that serviced by their own vessels. Many lines have vessel sharing agreements (VSAs) or 'slot charter agreements' with upwards of five partner lines on some routes. The system is essential for economic slot utilization.   

Around 10 percent of containers on deep sea container ships, upwards of a thousand containers on any of the larger container ships, contain dangerous goods. There are critical checks to be made against the particular voyage legs (voyage segments between ports) for the dangerous goods being shipped. 

  • Most lines restrict or prohibit certain classes of DG - particularly explosives, radioactive materials and some organic peroxides in reefer containers - so the booking line needs to know if the partner line that will carry the box or boxes will accept the DG.
  • Can the vessel booked for the voyage accommodate the DG restrictions on the stowage of many DG consignments - on deck only, away from accommodation, or away from sources of heat - meant that suitable space is finite.
  • Which ports will the vessel call at? Many ports and individual container terminals have strict rules on the classes of DG that can be loaded, unloaded or transhipped; these restrictions often apply also to DG that stays on the vessel while it is in port. Lines cannot afford to have their schedules interrupted because the 'wrong' DG is aboard a ship.

Hazcheck Restrictions solution

The solution started as an initiative with several major lines that use Hazcheck DG systems to help simplify the management of the partner line DG booking process.  It is an internet portal into which participating lines can enter (or upload) and maintain the operator, vessel and port restrictions for their operations. Each line controls its own data and authorises password-controlled access for partner lines who can then check for DG compliance and accept a provisional booking. Lines can also download the complete set of partner restrictions into their own systems and check the provisional booking there. 

Port, Location and Vessel restrictions/prohibitions

Hazcheck Restrictions is currently supporting the management of shipping line (operator) restrictions but the design allows the user to store and share data relating to location, port/terminal and vessels.  Exis will be working with the container shipping community to develop this part of the database with key industry partners.

The portal interfaces with lines' systems via upload/download features.  It is available as an extension of Hazcheck Gateway, the global DG web booking facility. 

Contact for further information.