C'mon people..... seriously....
I'm talking Minnesota law here....
If you're using your truck for work, it's a commercial vehicle.
If you're going to the grocery store, it's a personal vehicle, doesn't matter if you have signs / letters / whatever.
Where this DOES come in effect, is some cities won't let you park your pickup, escort, stationwagon, minivan ANYTHING with a commercial name on it on your own property, even if you run home for lunch, but this is all CITY ordinances.
Grass Disaster -
Hopefully you're still reading this post.
They probably won't pull you over, BUT they may well follow you to see if you're doing commercial work. I've had that happen before I had my truck / enclosed trailer lettered.
Minnesota law again now - If you're under 26k gross, which with that trailer / truck set up, you're over 10k, but under 26k, I'm assuming, since I run a 24' enclosed trailer behind a 2500 Dodge and I'm under 26k. Since you're under 26k gross, you do NOT need an inspection sticker. Since we only have commercial plates here in MN for anything 1-ton or bigger, your 2500 will have "personal" plates.
Anyways, here in MN, if you don't go more than 30 miles into WI, you do NOT need a USDOT number, that's ONLY if you travel INTERSTATE, not INTRASTATE. This does NOT go for ALL states, as I know that NY now DOES require all commercial vehicles over 10k to have USDOT numbers.
Grass Disaster - back to you again.
Here's a link to the MN Department of Public Safety, the guys that run the commercial vehicle inspection department.
http://www.dps.state.mn.us/patrol/comveh/index.htm
There's a link on the left side "contacts and faqs". At the top of the next page, you can click "here" for faqs and what the department of public safety is looking for.
You'll also see a map of Minnesota there. If you're in the metro area, I already email the Lt. for station 4730 about 2 months ago inquiring about USDOT numbers, and he sent an email back saying we do not need them.
Read that FAQ though, and you may want to do like I did and print a copy and keep it in the truck. I was stopped once and told by an officer that something wasn't in compliance, so I grabbed my sheet and said I am by your website, what better can I do??? He looked at the sheet and said that he was going to check into it when he got back to the department.
Anyways, about 3 weeks later I got a phone call stating that he was in error and apologized.
IF they do see that you're doing commercial work, (see trimmer in bed of truck) they WILL inspect you.
They WILL probably pull you over at the inspection area, since they pull ALL pickups over, just to check and send the personal people on their way.
IMO, if you're commercial, become legal. It's SOOO much easier.
I used to dodge all the inspection areas in the past, but now I just pull in, and get inspected by them....