JAF announces 2018 technical regulations.
http://jaf-sports.jp/cms_file/cms/cm...5517_00001.pdf
1) JAF-GT300 and JAF-GT300MC
*A new car after 2018 has to be able to remove a side door pane from outside.
*There has to be an automatic shut off valve in fuel pipe connected to an engine.
*A new car after 2018 has to use a racing seat for officially recognized with FIA standard 8862-2009.
*Racing vehicle after 2019 has to load a fire extinguisher which fits in with FIA standard 8865-2015.
*A new car after 2018 has to install an opening for driver rescues in a roof.
*A new car after 2018 has to install lift equipment in roll-cage.
2) JAF-GT500
No revision.