First off let me say that I am a police officer in GA and most equipment laws on the books are not enforced such as the 2"above or below stock suspension modification law.
This will prob piss ppl off but Jkzinger is incorrect.
Just because your vehicle is not registered in the given state your are currently within the borders of does not make you exempt from that state's equipment laws or any other motor vehicle laws. ( case law repeatedly affirms that ignorance of the law is not a valid defense)
For example: if its legal in your state to not wear a seatbelt.... Doesn't mean you can travel to GA and not be expected to follow GA seatbelt law or any other GA law that may not exist in your home state.
Research the laws in the states that you are traveling to and or are going to spend time in and expect to have to abide by them.
Most officers will use discretion regarding residency however they do not have to and a violation IS a violation regardless of residency.
With all due respect, police officers have no authority to issue compliance tickets to an out of state vehicle. A seatbelt ticket is not a compliance law. Compliance laws are as follows....(for example)
1) Front plate
2) Inspection
3)Lift
4)Fender flares (missing, too small, etc)
5) Exhaust
6)Tint
7) Headlights
etc
Your information is incorrect. I can roll into your state on 3 wheels, pluming smoke, with the worlds loudest exhaust, with the worlds tallest lift, with no front plate, with no fender flares on 54" tires, and there is nothing anyone can do about it. They can write the ticket, but it will never stick. This is why a lot of people in NY have florida plates (no need for inspection, front plate, any tint they want, etc) and why NJ people have PA plates. Furthermore, even IF the vehicle's home state requires something that is in violation (say a front plate), the police of the other state do not have the authority to enforce the laws of another state. This is further protected by the Freedom of Movement Act, which ties the hands of police officers for enforcing laws which hold the driver under it's umbrella, including gun transportation (FOPA), vehicle compliance, etc.
Took a picture of an old ticket I had from when I lived in NY....look towards the bottom with the inspection, registration, etc....
See the NYS only?
I got a ticket in VA for no front plate, and it was dismissed by mail, since the vehicle was plated NJ.