17.—(1) Workers engaged in essential or emergency works—
(a)related to water supplies and sewerage services, and
(b)carried out by a relevant undertaker,
where they have travelled to the United Kingdom in the course of their work.
(2) For the purposes of this paragraph—
(a)“essential or emergency works” includes—
(i)inspections, maintenance, repairs, and asset replacement activities,
(ii)monitoring, sampling and analysis of water supplies under the Private Water Supplies Regulations (Northern Ireland) 2017(1), or the Water Supply (Water Quality) Regulations (Northern Ireland) 2017(2),
(b)“sewerage services” has the meaning given in regulation 2(2) of the Water and Sewerage Services (Northern Ireland) Order 2006(3),
(c)“relevant undertaker” has the meaning given in regulation 2(1) of the Water Supply (Water Quality) Regulations (Northern Ireland) 2017 and is appointed under Article 13 of the Water and Sewerage Services (Northern Ireland) 2006.