The WARN Act applies to private businesses with 50 or more full time workers in New York State. It covers:
Closings affecting 25 or more workers
Mass layoffs involving 25 or more full-time workers (if the 25 or more workers make up at least 33% of all the workers at the site)
Mass layoffs involving 250 or more full-time workers
Certain other relocations and covered reductions in work hours