View source for FIA Formula 4

{{Championship Infobox
|name               = Formula 4
|logo               = File:F4Regional.png
|category           = Single-make open wheeler
|locale             = Worldwide
|founder            = ''Various''
|inaugural season   = ''Various''
|last season        = ''Ongoing''
|number of drivers at start of season  = ''Various''
|number of teams at start of season  = ''Various''
|engine suppliers   = ''Various''
|tyre suppliers     = ''Various''
|current driver's champion = ''Various''
|current team's champion  = ''Various''
|page for series records  = [[Formula 4 Records]] 
|current season page     = ''See below''  
|}}
'''FIA Formula 4''', commonly referred to as just [[F4]], is the fourth tier of open-wheel racing sanctioned by the FIA. Like [[FIA Formula 3|Formula 3]], there is no world championship for F4 - instead, a collection of regional championship run to the rules and regulations. F4 series are usually a driver's first car racing experience out of karts and thus are used heavily for driver development, although some series do feature older drivers, such as [[FIA Italian F4|Italian F4]].

==Rules and Regulations==
===Series running to Formula 4 regulations===

{| class="wikitable" style="font-size: 85%;"
! Series
! Location
! Inaugural Season
! Final Season
|-
| [[File:flag of the United Kingdom and Ireland.png]] [[Anglo-Irish Formula 4]]
| British Isles
| [[2018 Anglo-Irish Formula 4 season|2018]]
| ''Ongoing''
|-
| {{ITA}} [[Italian Formula 4]]
| Italy and French Riviera
| [[2018 Italian Formula 4 season|2018]]
| ''Ongoing''
|-
| {{Anglo America}} [[North American Formula 4]]
| Anglo-America
| [[2018 North American Formula 4 season|2018]]
| ''Ongoing''
|-
| {{SouthAmerica}} [[South American Formula 4]]
| Latin America
| [[2019 South American Formula 4 season|2019]]
| ''Ongoing''
|-
| {{JPN}} [[Asian Formula 4]]
| Eastern Asia
| [[2019 Asian Formula 4 season|2019]]
| ''Ongoing''
|-
| {{RUS}} [[Russian Formula 4]]
| Russia and Turkey
| [[2020 Russian Formula 4 season|2020]]
| ''Ongoing''
|}

===Cars built to Formula 4 regulations===
{| class="wikitable" style="font-size: 85%;"
! Chassis
! Series
! First used
! Last used
|-
| {{FRA}} Mygale
| {{GBR IRL}} [[FIA Anglo Irish F4|Anglo Irish F4]]
| [[2018 Anglo-Irish Formula 4 season|2018]]
| ''Ongoing''
|-
| {{ITA}} Tatuus FA010
| {{ITA}} [[FIA Italian F4|Italian F4]]
| [[2018 Italian Formula 4 season|2018]]
| ''Ongoing''
|-
|rowspan=2|{{USA}} Crawford Composites
| {{Anglo America}} [[FIA North American F4|North American F4]]
| [[2018 North American Formula 4 season|2018]]
| ''Ongoing''
|-
| {{RUS}} [[Russian Formula 4]]
| [[2020 Russian Formula 4 season|2020]]
| ''Ongoing''
|-
|rowspan=2|{{JPN}} Dome
| {{JPN}} [[FIA Asian Formula 4|Asian Formula 4]]
| [[2019 Asian Formula 4 season|2019]]
| ''Ongoing''
|-
| {{SouthAmerica}} [[FIA South American Formula 4|South American F4]]
| [[2019 South American Formula 4 season|2019]]
| ''Ongoing''
|-
|}

===Engines built to Formula 4 regulations===
{| class="wikitable" style="font-size: 85%;"
! Manufacturer
! Series
! First used
! Last used
|-
| {{USA}} Ford 
| {{GBR IRL}} [[FIA Anglo Irish F4|Anglo Irish F4]]
| [[2018 Anglo-Irish Formula 4 season|2018]]
| ''Ongoing''
|-
|rowspan=2| {{ITA}} Abarth
| {{ITA}} [[FIA Italian F4|Italian F4]]
| [[2018 Italian Formula 4 season|2018]]
| ''Ongoing''
|-
| {{SouthAmerica}} [[FIA South American Formula 4|South American F4]]
| [[2019 South American Formula 4 season|2019]]
| ''Ongoing''
|-
| {{JPN}} Honda
| {{Anglo America}} [[FIA North American F4|North American F4]]
| [[2018 North American Formula 4 season|2018]]
| ''Ongoing''
|-
| {{JPN}} TOM'S
| {{JPN}} [[FIA Asian Formula 4|Asian Formula 4]]
| [[2019 Asian Formula 4 season|2019]]
| ''Ongoing''
|-
| {{RUS}}/{{GER}} GAZ-Porsche
| {{RUS}} [[Russian Formula 4]]
| [[2020 Russian Formula 4 season|2020]]
| ''Ongoing''
|}