The introduction of Part 2A into the Building Regulations marks a fundamental shift in how building safety is approached across the UK. Emerging from the wider reforms introduced by the Building Safety Act 2022, it establishes a clear dutyholder and competence framework within the Building Regulations 2010, implemented through the Building Regulations etc. (Amendment) (England) Regulations 2023. It addresses long-standing gaps in accountability, competence, and oversight across the design and construction process, setting a more robust standard for how building safety must be managed and delivered.
Official guidance says these duties apply in England, took effect from 1 October 2023, and cover all building work, not only higher-risk buildings. The formal dutyholder structure is now clear: client, principal designer, designer, principal contractor and contractor.
That matters because Part 2A replaces ambiguity with accountability. The client must make suitable arrangements for planning, managing and monitoring the project; where there is more than one designer or contractor, the client must appoint a principal designer and principal contractor in writing; and those appointments must happen before the construction phase begins, or earlier for higher-risk building applications. In other words, responsibility is no longer something that can drift around the edges of a project. It has to be named, evidenced and managed.

What Part 2A changes in practice
Official guidance from the Building Safety Regulator and the Health and Safety Executive makes clear that the client must allocate enough time and resource, provide building information to designers and contractors, and appoint people with the necessary competence or organisational capability. Designers must not begin design work unless they are satisfied the client understands their legal duties, and contractors must not start building work unless they are satisfied of the same. Principal designers and principal contractors then have explicit obligations to plan, manage, monitor and coordinate their respective phases so that the work complies with building regulations.

The word that sits at the centre of all this is competence. The regulations say individuals must have the necessary skills, knowledge, experience and behaviours, while organisations must have the necessary organisational capability. Competent people and organisations must be able to cooperate, refuse work beyond their competence, refuse non-compliant work, and seek help when needed. If competence is lost during a project, the regulations require that to be notified. This is a very different standard from the old habit of assuming capability and discovering gaps later.

Why this matters for smoke ventilation and fire safety
For the fire sector, Part 2A bites hard because smoke ventilation systems are not stand-alone commodities. They depend on fire strategy, building geometry, interfaces with alarms and evacuation systems, coordination with structure and architecture, correct installation, rigorous commissioning and sensible long-term maintenance. Designers of fire precautions will often fall within the designer definition, installers of fire safety systems will typically fall within the contractor definition, and some firms may take on principal dutyholder responsibilities depending on the project.
The implications are even sharper on higher-risk building work. Clients on those schemes must manage the building control approval process and submit documents such as drawings and plans, a competence declaration, a construction control plan, a change control plan and a mandatory occurrence reporting plan. They must also keep written records of the steps taken to verify competence and maintain the golden thread of building information. Gateway 2 remains the stop/go point before relevant higher-risk building work starts, so late fixes, patchwork design coordination and vague competence claims are exactly the kind of weaknesses the regime is designed to expose.

What this means for FDS Group
From our perspective at FDS Group, Part 2A confirms something already understood: life-safety systems work best when responsibility is joined up from the earliest design intent through to handover and ongoing upkeep. FDS Contracting bridges concept design with practical installation and commissioning, and across the group we manage projects from consultancy and design to installation, commissioning and ongoing maintenance. Our service offering is built around that continuity, with smoke ventilation design, CFD modelling, installation, commissioning and maintenance all sitting within the wider group rather than being fragmented across disconnected suppliers.

That model fits neatly with the demands of Part 2A. FDS’s design packages include fully coordinated smoke control, evacuation and fire alarm schematics, detailed CFD modelling and professional reports for Building Safety Regulator requirements. Its installation service is delivered under IFC SDI-19 certification, and its commissioning offer is framed around full testing, validation and documentation. FDS Maintenance then supports the operational phase with planned preventative maintenance and emergency call-out support. In practical terms, that means a clearer line between the fire strategy, the evidence used for approval, the system that is actually installed on site, and the records needed after handover.

What this means for clients
For clients, Part 2A should change procurement behaviour. The lowest headline price is no longer the safest shortcut if it buys uncertainty about who is designing what, who is coordinating interfaces, how competence is being evidenced, or how the installed system will be proven compliant. The regulations now push clients to ask better questions:

• Who is the dutyholder?
• Who controls the design phase?
• Who controls the construction phase?
• What written evidence exists to support competence?
• What information will be handed over for future maintenance and compliance?

Those are not administrative niceties. They are now central to legal compliance and project risk.
For developers, architects, consultants, contractors and building owners, the practical benefit of bringing in a specialist smoke ventilation contractor early is simple: fewer surprises, fewer late redesigns, better coordination with the wider fire strategy, stronger evidence for approvals, and a clearer route from design to maintenance. FDS positions itself around exactly those pressure points, with dedicated support for developers, architects/consultants and contractors, a turnkey approach through the project lifecycle, and maintenance services intended to keep critical life-safety systems operational and documented once the building is in use.

Why proven competence matters more than ever
The certification point is worth underlining. The SCA IFC SDI 19 scheme was developed by the Smoke Control Association in partnership with IFC Certification to establish a suitable level of competency in areas including fire strategy verification, system design and the installation of smoke control systems. The scheme also covers a contractor’s ability to provide appropriate service and maintenance after installation and commissioning, and the SCA requires members who install smoke ventilation systems to apply for and hold SDI 19 accreditation as a condition of membership. IFC says its installer certification process includes office and site audits together with competence assessment of operatives and supervisors.
That is why, at FDS Group, we believe Part 2A should be read not as a burden but as a line in the sand. It tells the market that fire safety and smoke ventilation work must be carried out by people who can demonstrate competence, not merely claim it. For our clients, the message is equally clear: appoint specialist contractors who can design, model, install, commission and support these life-safety systems with auditable competence and coordinated evidence. FDS Contracting’s SCA IFC SDI 19 certification, together with our end-to-end smoke ventilation and fire safety capability across the group, gives clients a more dependable route to compliant design, smoother approvals and safer buildings in use.