Ensuring ADA compliance is a must for all signage fabricators and manufacturers; however, it's not uncommon for certain details to slip your mind from time to time. In our experience, one of the most common mistakes in photopolymer production is not making use of the Stouffer Scale to ensure that bulbs are working properly. This might seem like a minor detail but it makes all the difference, considering poor exposure can lead to non-compliance as well as failures causing expensive remakes and loss of customer confidence.