The IDA, DLC, Energy Star, and NOM in Mexico are a few of the North American Accrediting Bodies. The fixture specifications that a designer must consider range from the FCC, IEEE, to the test methods that are used to verify the fixtures performance. These organizations all play a role in the final aspects of fixture design from the noise a fixture produces converting the energy to light to the safety protocols that prevent maintenance crews and others from getting injured. The color consistency and mounting heights ensure good visibility.