I propose to take Questions Nos. 923 and 924 together.
The Building Regulations set out the legal requirements for the design and construction of buildings, including dwellings. Compliance with the Regulations is the responsibility of the owner or builder of a building. Enforcement of the Regulations is the responsibility of the 37 local building control authorities who are empowered to carry out inspections and initiate enforcement proceedings, where considered necessary.
Part H of the Second Schedule to the Building Regulations 1997 to 2011 sets out the requirements for the disposal of foul and surface water. The related Technical Guidance Document (TGD H 2011) provides guidance on how these requirements can be achieved in practice.
In relation to the use of septic tanks in particular, TGD H states that "Septic Tanks must conform to I.S. EN 12566 Part 1 or 4 including their national annexes and comply with the EPA Code of Practice — Section 7."
The national annexes were recently completed and published by NSAI, in consultation with my Department and others. They set out clearly the performance required by septic tanks when used in Ireland, and tested in accordance with I.S. EN 12566 Part 1 or 4.
Under the EU Construction Products Directive, any product tested to a harmonised standard can be put on the market in a Member State, including Ireland. While it is not possible to indicate the number of septic tank units so tested by approved testing bodies throughout the EU, my Department is currently aware of four septic tank units which have been tested for, and declared to be in compliance with, current Irish performance standards.