Under normal conditions, you do not have to specify a catalog on a DD statement when using access method services.

You might have to use DD statements to recatalog an incorrectly cataloged data set, or to define new system data sets.

The examples in this document occasionally use SMS functions. However, most examples can be used in either an SMS or a non-SMS environment, although minor changes might be necessary. Where allocation information can be included in a data class (for example, space attributes), they are explicitly coded. If management class or storage class is specified, it can be removed for non-SMS environments.

See z/OS DFSMS Using Data Sets for more details on allocating SMS-managed data sets. See z/OS DFSMS Access Method Services Commands for more details on JCL requirements for access method services.