The Professional Game Match Officials Limited (PGMOL), which is responsible for the refereeing of games in professional English football, ‘immediately’ suspended Vicars once the police began investigating the allegation.
He appeared at Willesden Magistrates Court earlier this month charged with the offence, which is contrary to the Sexual Offences Act 2003.
Vicars will next appear at Snaresbrook Crown Court on March 7, when it is expected he will be asked to enter a plea.
Gareth Vicars, 46, from Milton Keynes, is accused of engaging in sexual activity with a 15-year-old girl in November 2021.
He last appeared on the pitch as the fourth official for the League One clash between Charlton Athletic and Derby County in February 2024.