22.—(1) This Article applies to any premises or part of any premises, being or being part of a hereditament which in any valuation list prepared by the Commissioner of Valuation is distinguished as exempt under Article 41 of the Rates (Northern Ireland) Order 1977 [1977 NI 28] and which the Commissioner certifies is so distinguished as being a hereditament of a description mentioned in paragraph (2)( b) or ( c) of that Article.
(2) If, after the confirmation of an order made by a district council under Article 17, the owner or occupier of any premises or part of any premises to which this Article applies and which will be within the smoke control area as the result of the order incurs expenditure on adaptations in or in connection with the premises or part of the premises to avoid contraventions of Article 17, the district council may repay to him the whole or any part of that expenditure.
(3) Article 20 shall apply for the interpretation of this Article as it applies for the interpretation of Articles 18 and 19, but as if references in that Article to a dwelling were references to any premises or part of any premises to which this Article applies.