My apologies, guys.... I read the HB5228 and the PA231. Yes, vehicles under the designated 26,001 weight no longer need to display DOT numbers. It was my belief that any commercial vehicle (a vehicle used for business, whether a pick up or larger truck) was required to display this. Thank you, Outdoor Services for reposting the information. Alot of this continued confusion could be avoided if these agencies and municipalities would adopt the same set of rules/regulations. DOT numbers coming off the pick-up, but staying on the larger trucks.