Fmcsa has not changes the rule, I think a couple states have this past year. No matter, if you are based in say ... Michigan and go to say ... New York and New York has a no tint on CMV law, too bad if the cop issues you a ticket because the ticket can't be issued - the fmcsa reg superceeds the New York law.
He didn't, and I didn't think to ask. I wish I had asked just to verify what I already know. My windows are 20%, perfectly legal on everything else in my home state of Tennessee. I do have a 5% limo strip across the windshield and he specifically said there is no problem with having that there, it's the side windows they're getting picky about. I would never go darker than what's legal in my state and that's been 20% for as long as I can remember. Here's a good link on understanding window tint percentages: Team Acme
I’ve had my windows tinted for 3 years and multiple inspections nobody ever said anything them. Then 2 weeks ago coming down 35 in Iowa got pulled in for a level 3 and the officer came out to my truck and immediately took out the tint meter. Gave me a verbal warning and advised to remove it as soon as I made it back home. So I did.
What's legal in one state isn't in the next. Doesn't matter if there is federal reg in your favor. Cops write wrongheaded tickets all the time. Then you have to deal with the mess and prove your innocence. Backwards and F'd up but that's the way of the world. Tint draws scrutiny and who needs the headache?
Did he tell you what percentage you had on? Once I put mine on, I would make sure to have several reputable sources ready in a packet to hand over to the officer. No need to argue with the officer, and can be counter-productive as the officer may get defensive and proceed citing you even if your case is legit. I’ll let the paperwork do the talking. I have an APU, and almost all states allow at least 400 pounds over gross. I have never in my close to 6 years of trucking been questioned about using the APU Vehicle Weight Exemption. In my permit folder, I have three sources ready in case the officer is not familiarized (documents below). One of the sources I use was also used by a big fleet of 2,500 drivers I used to work for.