You need to carry the original document with you. You aren't supposed to make photo-copies of it to carry around.
In ANY state or territory of the US, you MUST carry your original drivers license with you, regardless of license class.
If your Massachusetts license allows you to operate a motorcycle, you should not need to get a Colorado license because you are only a temporary resident.
To establish residency in Colorado, you generally need to be physically present in the state for at least 12 consecutive months. This includes demonstrating intent to make Colorado your permanent home, such as obtaining a state driver's license, registering to vote, and paying state taxes as a resident.
No. I'm not a PA resident, so I couldn't get a PA license. That, and I wouldn't downgrade my Class A anyhow..
People who already have a license and have established permanent residence in Colorado are supposed to get their license changed to a Colorado license within 30 days and register their vehicle within 60. Residence can be established by the purchasing of property, the signing of a rental or lease agreement for property, or gaining employment in Colorado while paying taxes to the State of Colorado. So if you worked for a nationwide company in a Colorado office and that office wouldn't pay your taxes to your home state, then you'd be considered a Colorado resident.
Live there: plain and simple. To identify you as a resident of IL you should get your Driver License (or State ID) transferred from your original state to IL.
Not without being a resident of the state, and, to be honest, you wouldn't want it anyhow - get pulled over in any other state with Colorado plates and/or a Colorado license, and they're going to come up with an excuse to search your car, thinking you have weed in there.
If you live in a neighboring state, you can buy Title I long guns without even being a resident. As for residency, you can buy a firearm in Colorado the day you get a Colorado drivers license. For military personnel, orders showing that you've been stationed in Colorado for at least 30 days are required if they don't possess a CO license.
For transient use, yes. To live in the US as a resident and get a truck driving job in the US, no.
Yes. If you're moving to Colorado, the state requires you to exchange it for a Colorado license within 30 days of establishing residence, although it's not that strongly enforced... I moved to Colorado in November of 2010, but didn't exchange my North Carolina CDL for a Colorado one until April of 2011, with no penalties.
A saltwater is around $40, and a freshwater is in between $30 to $35. There all good for a year since you purchase them
By becoming a NJ resident.
Unlikely, since unless you are a Colorado resident to begin with the document would have required a false statement thus making it invalid to begin with. Both states consider driving a privilege. If and when you are apprehended in either state you will be in big trouble.