[bruiseralmighty]

You are required to have a copy of your driver's license, vehicle registration, and insurance information in your car while driving on public roads in the United States.

I believe you can refuse to present these, but this will result in charges.

You are not required to submit to a drunk driving check (we call them field sobriety checks). A cop will tell you something along the lines of:

"If you don't do X, Y, and Z to prove to me you're not over the legal limit (of blood alcohol), then you aren't going home tonight."

This scares people into submitting to the test and in many cases they are then charged with drunk driving. However, you can refuse to submit to the test. Your license is immediately suspended and the cops will then begin the process of securing a warrant for a test under suspicion of drunk driving. Forcing them to do this however can take long enough that you become under the legal limit by the time their search is conducted thus avoiding a charge of drunk driving.

The reason or this stems from our bill of rights protecting us from the state compelling us to testify against ourselves. This includes providing bodily fluids like breath and blood as well as undergoing potentially incriminating tests like a field sobriety check.