officiate at

See: conduct
References in classic literature ?
This afternoon you must officiate at the wedding of two of our company, in Nottingham Church.
Last Sunday saw the pair officiate at the same game for the first time when they were assistants for the Llandudno v Abergavenny Welsh Premier Women's League clash.
TOP Olympic judges involved in Conlan's controversial decision will no longer be allowed officiate at Rio.
Muscat: Omani umpire Mohammed bin Rashid Al Falahy has been invited by the Bahrain Tennis Association to officiate at the 2015 Davis Cup Asia/Oceania Group IV competition in Manama.
Dubai: The Emirates Racing Authority (ERA) on Wednesday announced that Racing Victoria's Chairman of Stewards Terry Bailey will officiate at the 20th Dubai World Cup meeting, the richest day in world racing, at Meydan Racecourse on March 28.
That game saw the experienced Uzbek become the first referee to officiate at nine World Cup matches, beating the previous record of eight he shared with Joel Quiniou of France, Benito Archundia of Mexico and Uruguay's Jorge Larrionda.
The Jewish comedian got ordained online last year with the Universal Life Church so that she could officiate at a friend's wedding atop the Empire State Building.
A judge in Washington State has been reprimanded by the state's Judicial Conduct Commission for publicly stating that he would not officiate at a same-sex wedding.
But he did not need any special credentials to officiate at the Stewart ceremony because Massachusetts offers a "one-day marriage designation" that, for $25 and a character reference, allows any friend or family member of a couple to legally perform a wedding.
Referees in receipt of a FIFA badge are entitled to officiate at FIFA and AFC fixtures, both at club and international level.
WHISTLE HAPPY Mick McDonough will officiate at the Carling Cup final between Liverpool and Cardiff tomorrow