Default settings such as destinations and whether or not ODS Graphics is enabled vary depending on your operating system, registry settings, configuration file settings, system options, and whether you are using the SAS windowing environment or batch mode. For this reason, this chapter makes no assumptions about these defaults. Instead, destinations are often explicitly closed without assuming which destination (usually LISTING or HTML) is open, destinations are explicitly opened when needed, and ODS Graphics is explicitly enabled and disabled as needed. In some examples, when all destinations are closed, the LISTING destination is opened at the end of the step so that some destination is available for subsequent output. If you know the defaults for your environment, you do not need to use many of the ODS statements that are used in this chapter.