In New York state, guidelines for an 80-hour maximum workweek were estimated to increase staffing costs by a quarter-billion dollars per year.
The New York state also introduced a minimum 20 hour workweek guideline. 
mnli hypothesis: The New York state also introduced a minimum 20 hour workweek guideline.  premise: In New York state, guidelines for an 80-hour maximum workweek were estimated to increase staffing costs by a quarter-billion dollars per year.