officiate at

See: conduct
References in classic literature ?
This afternoon you must officiate at the wedding of two of our company, in Nottingham Church.
He added: "I would like to thank the County Football Association for giving us this opportunity so early in Alice's career and I hope that she can learn from this and go on to officiate at the highest level possible in the future.
Jamal Al Ghandoor, the former Egyptian referee who heads the Referees Committee said they have asked the Asian Football Confederation (AFC) to call Uzbek referee Rafshan Ermatov to join his Japanese counterpart to officiate at the tournament.
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.
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
THE Archbishop of Canterbury Dr Rowan Williams will officiate at the wedding of Prince William and Kate Middleton, it is understood.