The Leviton ASHRAE 90.1 app simplifies ASHRAE Standard 90.1 2010 lighting control requirements for new and retrofit projects. This powerful app organizes ASHRAE 90.1 information and makes it easily accessible and readily available with a simple swipe on your device. Search by application, article language and recommended Leviton solutions to get inspiration for designing ASHRAE 90.1 compliant applications. View diagrams and summaries of the requirements met for recommended solutions. Examples of