> For the complete documentation index, see [llms.txt](https://met-administration.gitbook.io/uk-policing-knowledge-base/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://met-administration.gitbook.io/uk-policing-knowledge-base/on-duty-bulletin/call-grades.md).

# Call Grades

Call grades are used to identify the call urgency, and this response time.

**Immediate (I) grade**

 'I' grade calls are calls where "the immediate presence of a police officer will have a significant impact on the outcome of an incident". This is typically categorised as where there is, or is likely to be, a danger to life, a serious threat of violence, serious damage to property or serious injury. The response time to a call of this urgency is 15 minutes.

(Sirens & ELS)

**Significant (S) grade** 

 'S' grade calls are calls where there is a "degree of importance or urgency associated with the initial police action, but an emergency response is not required". The response time to a call of this urgency is 60 minutes.

(ELS Only)

**Extended (E) grade** 

 'E' grade calls are calls where police attendance is required, but an emergency police response is not. The response time to a call of this urgency is 48 hours.

(No ELS or sirens needed)

**Referred (R) grade** 

  ‘R’ grade calls are calls where police attendance is not required. This typically means that the caller has been dealt with appropriately by the call handler.

(No response needed)