- active fire safety measures
(“mesurau diogelwch tân gweithredol”) includes sprinkler systems (including isolating valves and control equipment for that system), smoke control systems (including heating or ventilation and air conditioning systems with a smoke control function), fire or smoke dampers, fire alarm systems, lifts and lift shafts (including evacuation or fire-fighting lifts), and fire main and hydrants;
- agreed document
(“dogfen gytunedig”) means— (a) a plan or document in relation to HRB work, stage of HRB work or work to existing HRB that was approved by virtue of regulation 7(7) or (9) or regulation 15(7) or (9), or (b) where such a plan or document is revised— (a) in relation to a major change, the plan or document that was approved under regulation 24(7) or (9);
- building control approval
(“cymeradwyaeth rheolaeth adeiladu”) has the meaning given in paragraph 1B(2) of Schedule 1 to the 1984 Act;
- building control authority
(“awdurdod rheolaeth adeiladu”) has the meaning given in section 121A of the 1984 Act;
- building regulations
(“rheoliadau adeiladu”) has the meaning given in section 122 of the 1984 Act;
- Building Regulations compliance statement
(“datganiad cydymffurfedd â’r Rheoliadau Adeiladu”) means a document in accordance with paragraph 4 of Schedule 1;
- building safety risk
means a risk to the safety of people in or about the building arising from any of the following occurring as regards the building—
- category A work
(“gwaith categori A”) means work falling within any one or more of the following descriptions— (a) work which increases or decreases the external height or width of the higher-risk building;
- category B work
has the meaning given in regulation 12(6).
- certifier
(“ardystiwr”) means where the work is described in column 1 of the Table in Schedule 3 to the 2010 Regulations and the work is to be carried out by a person described in the corresponding entry in column 2 of that Table, the person carrying out the work;
- change control application
(“cais rheolaeth newid”) has the meaning given in regulation 18(5);
- change control log
(“lòg rheolaeth newid”) has the meaning given in regulation 19(1);
- change control plan
(“cynllun rheolaeth newid”) means a document in accordance with paragraph 3 of Schedule 1;
- commercial unit
(“uned fasnachol”) means a part of a building in separate occupation which does not contain a flat or residential room;
- competence declaration
(“declarasiwn cymhwysedd”) means a statement in accordance with paragraph 1 of Schedule 1;
- completion certificate
(“tystysgrif gwblhau”) means a certificate issued under regulation 43;
- completion certificate application
(“cais am dystysgrif gwblhau”) has the meaning given in regulation 39(1);
- compliance declaration
means a document, signed by the principal contractor (or sole contractor) or the principal designer (or sole or lead designer) to which the declaration relates, that includes—
- compliance explanation
(“eglurhad cydymffurfedd”) has the meaning given in regulation 19(2)(g);
- construction control plan
(“cynllun rheolaeth adeiladu”) means a document in accordance with paragraph 2 of Schedule 1;
- construction phase
(“cyfnod adeiladu”) means the period of time beginning when the HRB work, a stage of HRB work or work to existing HRB starts and ending when the work is completed;
- controlled change
(“newid a reolaethir”) has the meaning given in regulation 18(1);
- current agreed document
(“dogfen gytunedig gyfredol”) means the document that is an agreed document at the time the controlled change is proposed;
- current plans
(“planiau cyfredol”) means the plans that are an agreed document at the time the controlled change is proposed.
- dutyholders
means the client, the principal contractor (or sole contractor) and the principal designer (or sole or lead designer).
- electronic facility
("cyfleuster electronig") has the meaning given in regulation 31(13);
- emergency repairs
means repairs to a building which are necessary to be carried out as a matter of urgency due to the risk to health, safety or welfare of persons in or about the building.
- enforcing authority
(“awdurdod gorfodi”) has the meaning given by article 25 of the Regulatory Reform (Fire Safety) Order 2005;
- exempt work
(“gwaith esempt”) has the meaning given in regulation 56;
- fire and emergency file
(“ffeil tân ac argyfwng”) means a document in accordance with paragraph 5 of Schedule 1;
- fire safety compliance information
(“gwybodaeth am gydymffurfedd o ran diogelwch tân”) has the meaning given in regulation 12(3)(d);
- fire safety information
(“gwybodaeth am ddiogelwch tân”) means information relating to the following— (a) the design and construction of the building and the services, fittings and equipment provided in or in connection with the building;
- fixed building services
("gwasanaethau sefydlog adeilad") has the meaning given in regulation 2(1) of the 2010 Regulations;
- full plans
(“planiau llawn”) means plans deposited with a local authority for the purposes of section 16 of the 1984 Act under regulations 12(2)(b) and 14 of the 2010 Regulations (as those provisions had effect immediately before 1 July 2026).
- golden thread information
(“gwybodaeth llinyn aur") has the meaning given in regulation 31(13);
- higher-risk building
(“adeilad risg uwch”) has the meaning given in regulation 3 of the 2023 Regulations;
- local authority
(“awdurdod lleol”) has the meaning given by section 126 of the 1984 Act;
- major change
(“newid mawr”) has the meaning given in regulation 26(1);
- mandatory occurrence reporting system
(“system adrodd mandadol am achlysuron”) means a system required under regulation 32;
- notifiable change
(“newid hysbysadwy”) has the meaning given in regulation 26(1);
- original application
(“cais gwreiddiol”) has the meaning given in section 30A(1) of the 1984 Act.
- owner
(“perchennog”) has the meaning given in section 126 of the 1984 Act;
- partial completion certificate
(“tystysgrif cwblhau rhannol”) means a certificate issued under regulation 44(14);
- partial completion certificate application
(“cais am dystysgrif cwblhau rhannol”) has the meaning given in regulation 44(2);
- partial completion strategy
(“strategaeth cwblhau rhannol”) means a document under paragraph 6 of Schedule 1;
- passive fire safety measures
(“mesurau diogelwch tân goddefol”) includes the cavity barriers, fire door sets, duct dampers, fire shutters and other fire separating elements;
- prescribed
(“rhagnodedig”) has the meaning given in section 126 of the 1984 Act;
- principal dutyholders
(“prif ddeiliaid dyletswyddau”) means the principal contractor (or sole contractor) and the principal designer (or sole or lead designer);
- reaction to fire classification
(“dosbarthiad adwaith i dân”) means BS EN 13501-1:2018 entitled “Fire classification of construction products and building elements.
- recordable change
(“newid cofnodadwy”) means a controlled change which is neither a major change nor a notifiable change;
- regularisation certificate
(“tystysgrif unioni”) has the meaning given in regulation 46(7);
- regularisation certificate application
(“cais am dystysgrif unioni”) has the meaning given in regulation 46(2);
- relevant period
has the meaning given in section 30A(9) of the 1984 Act.
- reporting person
(“person sy’n adrodd”) means— (a) any designer (including the principal designer), (b) any contractor (including the principal contractor), and (c) any other person who is a periodic visitor on the site of work;
- residential rooms
(“ystafelloedd preswyl”) means a room, or a suite of rooms, which is not a flat and which is used solely by one or more persons to live and sleep and includes a room in a hall of residence or a residential home, but does not include a room in a hospital or similar establishment, which is used for patient accommodation;
- responsible person
(“person cyfrifol”) has the meaning given in article 3 of the Regulatory Reform (Fire Safety) Order 2005;
- safety occurrence
(“achlysur diogelwch”) means— (a) in relation to a design, an aspect of design relating to the structural integrity or fire safety of a higher-risk building that would, if built, meet the risk condition;
- scheme work
(“gwaith cynllun”) means work to which regulation 20 (provisions applicable to self-certification schemes) of the 2010 Regulations applies;
- sewerage undertaker
(“ymgymerwr carthffosiaeth”) means a person appointed under section 6 of the Water Industry Act 1991 for the area in which the building is, or is to be, situated;
- special location
(“lleoliad arbennig”) means— (a) within a room containing a bath or shower, the space surrounding a bath tap or shower head, where the space extends— (a) vertically from the finished floor level to— (aa) a height of 2.25 metres, or (bb) the position of the shower head where it is attached to a wall or ceiling at a point higher than 2.25 metres from that level, and (b) horizontally— (aa) where there is a bath tub or shower tray, from the edge of the bath tub or shower tray to a distance of 0.6 metres, or (bb) where there is no bath tub or shower tray, from the centre point of the shower head where it is attached to the wall or ceiling to a distance of 1.2 metres, or (b) a room containing a swimming pool or sauna heater.
- specified
means specified by the building control authority in the notice referred to in paragraph (1).
- specified golden thread information
(“gwybodaeth llinyn aur benodedig”) means— (a) in relation to cases where regulation 44 applies, a copy of— (a) the partial completion certificate application in relation to the HRB work, the stage of HRB work or work to existing HRB which the client proposes to make, and (b) each document which under regulation 44(3) is required to accompany the application;
- staged work statement
(“datganiad gwaith fesul cam”) has the meaning given in regulation 4(3)(b)(i);
- subsequent stages statement
(“datganiad camau dilynol”) has the meaning given in regulation 4(3)(c)(i).
- the 1984 Act
(“Deddf 1984”) means the Building Act 1984;
- the 2010 Regulations
(“Rheoliadau 2010”) means the Building Regulations 2010;
- the 2016 Rules
means the Insolvency (England and Wales) Rules 2016.
- the 2023 Regulations
(“Rheoliadau 2023”) means the Building Safety (Description of Higher-Risk Building) (Design and Construction Phase) (Wales) Regulations 2023;
- the reporting procedure
means—
- unauthorised building work
(“gwaith adeiladu anawdurdodedig”) means any building work in relation to a higher-risk building which is carried out without— (a) a building control approval under regulation 7 or regulation 15 being granted by the building control authority;
- work to existing HRB
(“gwaith i ARU presennol”) means any work relating to a higher-risk building which is not HRB work;
- working day
(“diwrnod gwaith”) means any day which is not Saturday, Sunday, Christmas Day, Good Friday or a day which is a bank holiday in England and Wales under the Banking and Financial Dealings Act 1971.