Lloyd's Register’s Rules and Regulations for the Classification of Offshore Units (Rules for Offshore Unit) (Part 7, Chapter 3), require a Fire and Explosion Evaluation (FEE) report to be submitted. 

The FEE is intended to be an assessment of the potential fire loadings and blast pressures, based on the specific hazards associated with the general layout of the unit, production and process activities and operational constraints.

These Guidance notes provide different risk based methodologies to establish dimensioning fire loads ranging from a simplified approach to more detailed probabilistic approaches. The methodologies are applicable to any offshore unit where fire hazards are identified as a possible outcome from any type of accidental releases including LNG releases. As well as other types of fires including electrical cable insulation fires, diesel fires and methanol fires.

They also describe the types of fire likely to occur on an installation, and how design conditions and safety factors affect the characteristics of those fires.