The only Production Agreement I have handy is 2008–2011, and doesn't seem to include anything about that sort of layoff. I might have at least the next most recent one on my work computer, but I don't feel like looking right now.
The layoff provisions in the one I do have at hand requires things like four weeks' notice. (For an allowed layoff for Holy Week or not more than seven days of the two weeks before Christmas...this is some ancient stuff.)
