A plan review will be required on all new fire systems whether the system is required or not. 

A plan review will be required for fire sprinkler systems under the following conditions:

• If five or more sprinkler heads are added, or if five or more heads are relocated from one branch line to another branch line
• When ten percent or more of the heads on the system are relocated for any reason
• If a Backflow device is added to the system.
• If there is an addition or relocation of ANY heads in the original remote hydraulic design area or the remote hydraulic design area changes
• Pipe schedule systems must be plan reviewed if the changes will affect pipe size anywhere other than on a branch line
• Modification or replacement of fire pump components such as but not limited to fire pumps, controllers, or piping.

A plan review will be required for fire alarm systems under the following conditions:

• When the fire alarm control panel is replaced
• If there is an addition of three or more devices on any loop/circuit
• If five or more devices are added, relocated, or replaced on the system

A plan review will be required for hood suppression systems under the following conditions:

• If appliance lineup changes
• Addition or relocation of nozzles
• If the system is relocated
• Addition of agent cylinders

A plan review will be required for special hazard systems under the following conditions:

• If there is any addition to the system
• If the system is relocated