In addition to the comments posted by MJCronin, the insurance underwriter for the facility will have comments regarding the requirements for fire protection.
The comments will address the location of the tank relative to the rest of the facility. Loss of the tank and the business risk to the continuing operation of the facility will also be addressed.
If there are multiple remote tanks, there is less business risk and need for fire protection as compared to a tank that is in close proximity to other facilities.