Displaying your USDOT number outside of your commercial vehicle is one of the most important things to do as a first time or seasoned trucker. The minimum size to displaying your USDOT number is 2-inch lettering but we always recommend going bigger. We recommend 2-inch lettering if you are driving a pickup truck that needs a DOT number. If you are driving something bigger such as a dually, we recommend displaying your information using 3-inch lettering. Any larger vehicle such as a semi-truck we recommend displaying your USDOT number in 4-inch lettering to make sure it’s clearly visible when going through truck scales.
If you have any questions, please do not hesitate to contact us.