An "Insurance Survey" details the entire vessel and is very similar to a "Pre-Purchase Survey", only shorter. A great emphasis is placed on safety and value. The safety of the vessel occupants is of the most consideration when insuring any vessel. The second most important consideration is the value and condition of the vessel. A "Fair Market Value" of the vessel is always obtained in an "insurance survey". The price the surveyor places on the vessel is generally what the vessel will be insured for. When insurance companies are changed, a new survey is generally required. An insurance survey may also cost slightly less than a pre-purchase survey since a sea trial may not be needed. Most insurance surveys are requested by boat owners and not boat purchases. A boat owner usually knows what is wrong or what may need fixing. While a "Pre-Purchase Survey" will list every cosmetic defect or finding in detail whereas an "Insurance Survey" will not.