11—Compliance with standards that are varied or substituted
(1) Despite a requirement of these regulations for work to be carried out in accordance with a standard as in force from time to time, where the standard is varied or substituted, work for the installation, commissioning or modification of electricity infrastructure or an electrical installation may be carried out in accordance with the old standard—
(a) if—
(i) design work for that installation, commissioning or modification commenced before (but not more than 1 month before) the publication of the new standard and the work is to be completed within 1 year after that publication; or
(ii) the work (disregarding design or other preparatory work) had commenced before the publication of the new standard and is to be completed within 1 year after that publication; or
(iii) the work commenced after the publication of the new standard and is to be completed within 6 months after that publication; or
(iv) the work is to be undertaken under a contract based on the old standard and entered into before the publication of the new standard and is to be completed within 1 year after that publication; or
(v) the work is connected with the construction of premises and construction work had commenced before the publication of the new standard and is to be completed within 1 year after that publication; or
(b) in any other case—with the approval of the Technical Regulator, on terms and conditions the Technical Regulator considers appropriate.
(2) If—
(a) pursuant to subregulation (1) work is purportedly carried out in accordance with an old standard; and
(b) the work complies with that old standard,
an approval or certification that the work complies with the standard may be given for the purposes of these regulations.
(3) In this regulation—
(a) a reference to a "standard" includes a reference to—
(i) a code, guide or other document; and
(ii) a part of a standard, code, guide or other document; and
(b) a standard as in force following the variation or substitution of the standard is referred to as the "new standard"; and
(c) a standard as in force immediately prior to the variation or substitution of the standard is referred to as the "old standard"; and
(d) a reference to "work" includes a reference to examinations and tests related to the work.
(4) This regulation does not apply in relation to the National Electricity Rules or a code made by the Commission under the Essential Services Commission Act 2002 .