Bowsers are frequently used for the transport and on-site storage of diesel fuel at construction and demolition sites and temporary work sites, often to power equipment such as generators (which have their own changes in ADR 2019 – see UN 3528 here).

Bowsers manufactured prior to 2004 and used to transport diesel fuel (UN 1202) have been exempt from the requirement to be UN-approved as IBCs under UK Authorisation No 1.


This authorisation expires on the 9th of May 2019.

As the original authorisation was issued to allow industry time to adapt to the requirement for bowsers to be UN-approved as IBCs when used to transport UN 1202 (diesel fuel, heating oil light, gas oil) it is not expected that it will be re-issued.

We recommend you ensure that only appropriately approved IBCs are used to transport fuel or other dangerous goods and any IBCs (bowsers) that are not authorised are taken out of service for transport purposes before 9th May 2019.

Bowsers that are constructed as IBCs and carry the required certification are required to undergo tests and inspections after manufacture and every two and a half years, including a leakproofness test.

The UN certification and the dates of the last inspection and leakproofness test should be marked on the IBC, typically on a plate such as this one:

ibc plate

How can we help?

Full details of how the regulations work with regards to packaging certification can be found in our Guide to ADR, available to download from our Website:

a guide to adr

These topics are covered in detail in our Online ADR Awareness Training.

Our Dangerous Goods Safety Advisor (DGSA) consultants will be happy to explain the changes and what you need to do to comply with the law when transporting these goods.

See our Dangerous Goods Consultancy Services here.