In-building wireless radio networks for emergency responders, also known as emergency responder communications enhancement systems (ERCES), lack - but need - national standards and unifying best practices to ensure these networks operate as intended when needed. The survey, conducted by the Enterprise Wireless Alliance (EWA) on behalf of the Safer Buildings Coalition sought input from EWA members on an array of issues that affect the installation of these systems to identify areas of “disorder” or chaos in the installation and system maintenance process. And in particular, the survey wanted to collect data on harmful interference between multiple systems. The survey drew responses from across the private wireless industry, including public safety, installers, and equipment vendors. EWA thanks its members for their participation in this important research and has posted to its website a summary of the survey results for review.