There is often confusion over which colors are allowed when choosing an Exit sign for your building. Exit sign requirements vary by state and municipality, which is why it's important to check with your Fire Marshall to see whether Green Exit Signs
or Red Exit Signs are required in your building. The information below is for general guidance, only. For many, however, it is also important to get a “sense” of any color preference – so that your building is as consistent as possible with others in your area. Even though the European Union generally uses Green
Exit Signs (Red is used to specify prohibited actions), our UL 924 standards allow either Green Exit signs or Red Exit signs. Yet, localized codes often specify one or the
other.
State Summary
You will find both red and green Exit signs in Maine; however, red Exit signs are very common in Maine. The Fire Marshall recommends, like in New Hampshire, that your Exit signs contrast with the colors inside the room or building in which they are installed.