# The Shops (Sunday Trading &c.) (Northern Ireland) Order 1997, Paragraph 11


(1) Where an employee who is a protected shop worker or an opted-out shop worker is dismissed, he shall be regarded for the purposes of Part XI of the Employment Rights Order as unfairly dismissed if the reason (or, if more than one, the principal reason) for the dismissal is that he refused, or proposed to refuse, to do shop work on Sunday or on a particular Sunday.
(2) Sub-paragraph (1) does not apply in relation to an opted-out shop worker where the reason (or principal reason) for the dismissal is that he refused, or proposed to refuse, to do shop work on any Sunday or Sundays falling before the end of the notice period.
(3) A shop worker who is dismissed shall be regarded for the purposes of Part XI of the Employment Rights Order as unfairly dismissed if the reason (or, if more than one, the principal reason) for the dismissal is that the shop worker gave, or proposed to give, an opting-out notice to the employer.
(4) For the purposes of paragraph 2(2)(b) or 7(1)(b), the appropriate date in relation to this paragraph is the effective date of termination.
Sub‐para. (5) rep. by 1999 NI 9

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Source: https://www.legislation.gov.uk/nisi/1997/2779/schedule/2/paragraph/11 (the official version)
Page: https://openlegislation.uk/shops-sunday-trading-c-northern-ireland-order-1997/schedule-2/paragraph-11
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.