The way things happened at the time, the union rule was four songs in three hours.

Union rules require a crew to have 12 people, but because of limited space, only seven or eight can work at one time.

Because, you see, there are union rules against parents doing maintenance painting.

It has to be that way because of union rules.

The Orchestra played for about 30 seconds before union rules required them to stop playing and leave the stage.

Today, union rules make it difficult to combine professionals and students in a production.

Under current union rules, a different dining hall worker must do each of those three activities.

British classical musicians usually kept more to union rules than to the job of making music.

The Air Force has union rules on how much they can fly.

We're not constrained by union rules, so they have more time to work and think with us.