---
sourceDocument: Australia IT Service Management
sourceDocumentLink: https://servicenow-prod.fluidtopics.net/r/it-service-management

 Release :

    - australia

ft:locale :

    - en-US

ft:publication_title :

    - Australia IT Service Management

ft:clusterId :

    - itsm

bundleId :

    - itsm

workflow :

    - Technology


---

# Change types

# Change types {#ariaid-title1}

Release version: Australia  
Updated January 30, 2025  
![](https://www.servicenow.com/docs/portal-asset/ico-clock) 2 minutes to read  
Change Management supports the
three types of service changes ITIL describes --- standard, emergency, and normal. The change type
determines which state model is invoked and the change process that must be followed.

<br />

Standard change

:   A standard change is a pre-authorized change that is low risk, relatively common and follows a specified procedure or work instruction.

    A standard change is one that is frequently implemented, has repeatable implementation steps, and has a proven history of success. As Standard changes are pre-approved, they follow a stream lined process in which group
    level or peer approval and CAB authorization steps are not required.

    Approved standard change requests can be predefined in a catalog of templates to make accessing and requesting a standard change more efficient. This ability also enables the Change Management team to control the changes that are authorized as standard.

Emergency change

:   A change that must be implemented as soon as possible, for example to resolve a major incident or implement a security patch. This change is of such a high priority that it bypasses group and peer review and approval and
    goes straight to the Authorization state for approval by the CAB approval group.

    Emergency changes cover the following types of emergencies:

    * Fix on fail or retroactive situations where the impact to service has already been experienced.
    * Fail or fail situations where the impact to service is imminent if action is not taken.

    {#change-types__ul_qqc_dsk_wy}These changes do not follow the complete life cycle of a normal change due to the speed with which they must be authorized. Therefore, they progress directly to the Authorize state for approval from the CAB Approval group.

    During an emergency change, there are chances that an unplanned CI change activity occurs. During such a case, an unauthorized change request is created and sent for approvals. For more
    information, see [Unauthorized change request](https://servicenow-prod.fluidtopics.net/6mf8zPEdSPvf7_x9hnJlxg "Understand how an unauthorized change activity on a configuration item (CI) is captured and managed, so that you can review and take timely action on this change.").

Normal change

:   Any service change that is not a standard change or an emergency change.

    A normal change differs from a standard change in its approval path. Unlike a standard change, which is pre-approved and bypasses Change Advisory Board (CAB) authorization, a normal change requires assessment, peer or
    technical approval, and CAB authorization before implementation.

    Normal change requests follow a prescriptive process which requires two levels of approval before being implemented, reviewed, and closed. These changes require a full range of assessments and authorizations such as peer
    or technical approval, change management, and Change Advisory Board (CAB) authorization, to ensure completeness, accuracy, and the least possible disruption to service. These changes are most often scheduled outside of
defined change blackout windows or during defined maintenance windows. The normal type is used to implement beneficial change for any change to a service that is not a standard or emergency change.  
The following table summarizes about the three change types:{#change-types__table_change_type_compare__entry__4}

| Change type | Pre-approved | Required CAB | Typical use |
|-|-|-|-|
| Standard | Yes | No | Low-risk, repeatable changes with a proven history of success. |
| Normal | No | Yes | Any change that isn't standard or emergency and requires full assessment. |
| Emergency | No | Yes | High-priority changes that resolve a major incident or apply a security patch. |
[Table 1. Change type comparison]

{#change-types__table_change_type_compare}
**Related tasks**   

* [Add a new change request type](https://servicenow-prod.fluidtopics.net/CNwNGY1nD1wX31TSp~nqkQ "You can add a new change type to your change process. There are several processes involved with adding a change type. These processes include managing script includes and workflows.")