[5] In 2013, sets 8806 and 8815 were experimentally equipped with LED headlights, but these were subsequently replaced by conventional lights.

[6] The 8800 series originally carried a livery of beige with thin brown waistline striping.

A programme of refurbishment of the fleet was started in 2017, with new interior panels, flooring and seat covers.

[9]In July 2024, Shin-Keisei began operating various trains in former liveries, starting with N800 series set N838.

[10] 8800 series set 8808 returned to service with the Chiba Line through-service livery on 24 September 2024.