The Federal Pipelines Inspectorate (FPI) is the supervisory authority for all pipeline systems that are governed by the Swiss Federal Pipelines Act. It is specifically responsible for the supervision of oil pipelines outside of industrial and tank facilities, and for gas pipelines with a maximum permissible operating pressure above five bar. It fulfils this function in Switzerland and the Principality of Liechtenstein.
The FPI is not responsible, however, for all other pipelines such as those within industrial facilities and those intended for the transport of substances other than hydrocarbons.
In accordance with the Swiss Federal Pipelines Act, the specific mandate of the FPI concerns the technical supervision of pipeline systems for the transport of liquid and gaseous combustibles and motor fuels. Its duties are as follows: