Can I transport hazmat UN1263 in a pickup truck?

by RP
(NJ)

My company just started shipping Paint and we have customers sometimes pickup the product or we will deliver it in our pickup trucks.

It's usually no more than 40 to 60 gallons. I just wanted to know if you guys knew if we need to get any kind of hazmat certification for our drivers or if we are even allowed to do this because it's not a large quantity.

Thanks!