Enforcement and Compliance History Online (ECHO) is the public access website to data stored in EPA compliance and enforcement data systems. OTIS offers the same data but with queries specialized for government users. After modernization, government-only features will be provided via log-in as "ECHO Gov". EPA users will use their network ID and password to log in, while other government users will have to register for a user name (generally work email address) and password. OTIS is being retired 30 September 2013.