In the state of Washington where I live, it's mandatory to wear a minimum of 400 square inches of hunter orange during the modern firearm season. No orange is required during archery or black powder seasons. I was chatting with another hunter this past season and told him he had to have hunter orange on his head. It didn't take him long to dig out the regulations and prove me wrong. There is no requirement for hunter orange on the head. It's just a total of 400 inches.
I am curious how other states handle this. How much hunter orange is required in your state and where must it be worn?