In this task you will be given a passage and a yes/no question based on the passage. You should answer the question using the information from the passage.
Q: passage: The American Hockey League, the top minor league in North America required all players to wear a visor prior to the start of the 2006--07 season. The NHL ''strongly recommends'' the use of visors. In 2013, the NHL began requiring all players with less than 25 games of experience to wear visors.
question: is it mandatory to wear a visor in the nhl?
A:
Yes