[3] The name "F Liner" is given to trains under the two route systems explained below.

The service type of trains may change once across boundary stations for two different lines.

For instance: Within the Fukutoshin Line → "F Liner, Express", bound for Motomachi-Chūkagai; Within the Toyoko Line → "F Liner, Limited Express", bound for Shinrin-Kōen.

[4] The longest distance travelled for an F Liner journey is 100.1 kilometres (62.2 mi), from Ogawamachi to Motomachi-Chūkagai.

The F in F Liner stands for 3 English words starting with the letter F, which are: This article incorporates material from the corresponding article in the Japanese Wikipedia.