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Herbie Blash will end a 51-year stint in Formula 1 when he steps down from his role as FIA deputy race director at the end of the season.
Safety director Laurent Mekies, who joined the FIA in 2014, will take on Blash's duties alongside his current role.
Blash started his F1 career in 1965, working with privateer Lotus entrant Rob Walker before being joining Lotus as race engineer to Jochen Rindt in 1968.
He moved to Brabham in 1972 as team manager before being promoted to the role of sporting director.
He had a brief stint at Yamaha as sporting director of its F1 engine programme and then joined the FIA in 1996 as deputy race director.
"I would personally like to thank Herbie for all of his hard work for the FIA over the past 21 years, and especially for his contribution in maintaining Formula 1's place at the pinnacle of motorsport," said FIA president Jean Todt.
Thank you for all the hard work you've done for the sport Herbie.