New York Codes, Rules and Regulations
Title 12 - DEPARTMENT OF LABOR
Chapter XII - Division Of Employment And Training
Part 921 - New York State Worker Adjustment And Retraining Notification (warn) Requirements
Subpart 921-5 - Temporary Or Seasonal Employment
Section 921-5.2 - Seasonal employment

(a) Notice is not required if the closing or layoff results from the completion of a particular seasonal project or undertaking, and the affected employees were hired with the understanding that their employment was limited to the duration of the seasonal project or undertaking.

(b) The employer must demonstrate that it informed each employee at the time of hire that the job was seasonal.

(c) Employment in an industry that traditionally hires seasonal employees does not, in and of itself, make an employee seasonal if the employee was hired to perform a variety of jobs and tasks continuously through most of the calendar year.