RE: What are clothing regulations for shooting?
In my state for gun and muzzleloader deer hunting, 50% of the surface area of the clothing covering your upper body must be blaze orange. You can be fined for wearing blaze orange that is faded as the wardens have a color test to determine if the article of clothing in question is legal. If you wear a hat it must be Blaze orange also.
Wearing a ornage vest while upland bird hunting is not required but strongly suggested.
At the range I wear comfortable clothing. I don't wear tight jeans or anything that will bind or restrict movement. I often times wear a trap shooting vest in the summer to absorb recoil and have pockets to put all of my shooting accessories in. I always wear glasses and ear protection, as my hearing has deminished from years of trapshooting without hearing protection.
Alcohol, Tobacco, and Firearms... who's bringing the chips?