In 1955, the province reclassified trailers into two different types and created a new plate; the "Utility Trailer", to reflect this change:

It is generally thought that the new "Utility Trailer" plates were assigned to trailers used primarily for residential purposes, such as boat trailers or u-bilt trailers (it is understood that there may have been a weight limit of 1,500 pounds). The Utility plates would be in use from 1955 to 1973 and would undergone one minor design change (in 1969 when the date began to be stamped in the top right corner of the plates).

The plate shown below is a particularly egregious example of an error plate that was most likely rushed through the production plant at Oakalla Prison Farm in late 1968 as over-run in order to address a shortfall in supply:

The first give-away is that the serial is in excess of that listed in the records maintained by the MVB, which indicate that the run for 1968 was to be 99,999. That this particular plate is over 100,000 clearly indicates an additional allotment was stamped out.

Also of interest is that the plate displays the rather common error of mismatching dies on the serial (i.e. compare the two middle no. `1`s).

The design used for the plate is also the one that was to be used for the 1969 base (i.e. see the image of the 1969 in the gallery below). It was likely that Oakalla was already producing the 1969 plates at the time that additional 1968`s were required, and rather than revert back to old design a decision was made to use the new base.

In 1969, the plates underwent a design change with the date beginning to be stamped in the top right corner of the plates.

It is also interesting to note that, for those years that records are available, the bloc of numbers assigned to Utility plates generally commences around 5,000 numbers after that bloc given to the Commercial Trailer series.

For instance, in 1967, the Commercial series went from 1 to 16,000, whereas the Utility series commenced at 20,001 through to 99,000.

In 1974, the design of the plate was brought into conformity with most other non-passenger types through the use of the orange-on-white colour scheme. The most notable change to the actual plate is the dropping of the word "Utility".

Also if interest is the first known use of the Allocation Code of '05' for "Utility Trailer" plates in 1974. This code continues to be used on the Corporation's BC Licence Plate Identification Guide.

With the exhaustion of the all-numeric series around 2000, ICBC introduced the use of letters in a "AAA-00A" format.