The purpose of a SIL allocation report is to present the results from the SIL allocation process. This document includes a list of instrumented safety functions and their assigned Safety Integrity Levels.

The Safety Integrity Levels can be defined in a number of ways. The most common are LOPA, risk graph or using predefined SIL requirements presented in the Norwegian Oil and Gas association GL070. Other quantitative methods may also be used.

The Safety Requirement Specification, SRS, will later be based on the results from the SIL allocation process.