15. Section 21 of the No. 2 Act of 2013 is amended—

(a) by the insertion of the following subsection after subsection (2):

“(2A) The charging of customers of Irish Water for the provision of water services under this section is deemed to be part of the approved water charges plan.”,

(b) by the substitution of the following subsection for subsection (6):

“(6) Irish Water shall not charge—

(a) for the provision of water services (other than water services referred to in subsection (6A)) to a dwelling (including its curtilage), or

(b) for water services provided to a fire authority within the meaning of the Fire Services Act 1981.”,

(c) by the insertion of the following subsection after subsection (6) (amended by paragraph (b)):

“(6A) Irish Water shall charge for the provision of the following water services to a dwelling (including its curtilage):

(a) services that exceed the threshold amount in respect of which a customer is liable to make a payment under section 53D (inserted by section 11 of the Water Services Act 2017) of the Act of 2007;

(b) services referred to in paragraph (b) of section 3(16) of the Water Services Act 2014;

(c) services referred to in paragraph (c) of section 3(16) of the Water Services Act 2014.”,

(d) by the insertion of the following subsection after subsection (8):

“(8A) The amount of a charge for provision of water services that exceed the threshold amount may be calculated by Irish Water in relation to such provision over a period of less than 12 months (in this subsection referred to as the ‘lesser period’) in such proportion as is equal to the proportion of that lesser period to a period of 12 months.”,

and

(e) in subsection (9), by the deletion of the definition of “dwelling”.