Layec refereed his first match in Ligue 1 in 1998 and, in 2002, became a FIFA official. He refereed his last match on the final day of the 2009–10 season and now serves as the president of the Direction Nationale de L'Arbitrage () (DNA).
Layec officiated his inaugural match in Ligue 1 in 1998 and, in 2002, became a FIFA official. He officiated his final match on the last day of the 2009–10 season and now serves as the president of the Direction Nationale de L'Arbitrage (DNA).