# Process Rule List for an sObject

Accesses a list of all active workflow rules for an sObject. Use the GET method to retrieve records or fields. Use the HEAD method to retrieve information in HTTP headers.

Cross-object workflow rules can’t be invoked using REST API.

To access all workflow rules, use the [Process Rules](/docs/platform/api-rest/guide/resources-process-rules.md) resource. To access a specific workflow rule that is associated with a specific sObject, use the [Process Rule for an sObject](/docs/platform/api-rest/guide/resources-process-rule-object.md) resource.

- **[Get Process Rules for an sObject](/docs/platform/api-rest/guide/resources-process-rules-object-get.md)**

  Gets all active workflow rules for an sObject. This resource is available in REST API version 30.0 and later.

- **[Return HTTP Headers for Process Rules of an sObject](/docs/platform/api-rest/guide/resources-process-rules-object-head.md)**

  Returns only the headers that are returned by sending a GET request to the process rules resource for all process rules of an sObject. This gives you a chance to see returned header values of the GET request before retrieving the content. This resource is available in REST API version 30.0 and later.