California Code, Labor Code - LAB § 1400.5

(a) “Covered establishment” means any industrial or commercial facility or part thereof that employs, or has employed within the preceding 12 months, 75 or more persons.

(b) “Employer” means any person, as defined by Section 18, who directly or indirectly owns and operates a covered establishment. A parent corporation is an employer as to any covered establishment directly owned and operated by its corporate subsidiary.

(c) “Layoff” means a separation from a position for lack of funds or lack of work.

(d) “Mass layoff” means a layoff during any 30-day period of 50 or more employees at a covered establishment.

(e) “Relocation” means the removal of all or substantially all of the industrial or commercial operations in a covered establishment to a different location 100 miles or more away.

(f) “Termination” means the cessation or substantial cessation of industrial or commercial operations in a covered establishment.

(h) “Employee” means a person employed by an employer for at least 6 months of the 12 months preceding the date on which notice is required.