Section 15(1) of the Principal Act is amended by substituting the following for paragraph (c):

"(c) under the contract of employment under which the employee was employed immediately before the commencement of the period or, where a change of ownership such as is referred to in paragraph (a) has occurred, under a contract of employment with the successor that is identical to the contract under which the employee was employed immediately before such commencement, and (in either case) under terms or conditions -

(i) not less favourable than those that would have been applicable to the employee, and

(ii) that incorporate any improvement to the terms or conditions of employment to which the employee would have been entitled,

if he or she had not been so absent from work.".