Building Safety Acronyms & Definitions (UK)
The building safety sector uses a wide range of technical terms, abbreviations and legal language. This glossary explains common building safety, fire safety and compliance acronyms used across the UK, including terms such as PEEP, RPEEP, FRA, Golden Thread and Safety Case Report.
Popular Terms
A
AP (Accountable Person)
An Accountable Person is the individual or organisation legally responsible for managing building safety risks in higher-risk buildings. This role is defined within the Building Safety Act 2022. (see also Principal Accountable Person)
B
BAC (Building Assessment Certificate)
A Building Assessment Certificate (BAC) is an official document issued by the Building Safety Regulator (BSR) confirming a higher-risk building complies with safety regulations under the Building Safety Act 2022. It acts as legal proof that the Principal Accountable Person (PAP) is managing structural and fire safety risks effectively. HRBs are called forward for their BAC assessment by the BSR on a rolling programme with 28 days notice given.
BEEP (Building Emergency Evacuation Plan)
A building emergency evacuation plan is a documented, legally required strategy outlining how occupants safely exit a building during an emergency. It includes designated escape routes, assembly points, assigned roles, and specific procedures for assisting people who need extra support and is required to be shared with the local F&RA for buildings in scope of the The Fire Safety (Residential Evacuation Plans) (England) Regulations 2025.
BSR (Building Safety Regulator)
The Building Safety Regulator is responsible for overseeing the safety of higher-risk buildings in England. It operates as an independent body under the Ministry of Housing Communities and Local Government.
BSA (Building Safety Act 2022)
The Building Safety Act 2022 is UK legislation introduced to improve accountability, transparency, and safety in higher-risk buildings (see HRB)
C
CDM (Construction (Design and Management) Regulations 2015)
CDM regulations set out responsibilities for managing health, safety, and welfare during construction projects.
Competence
A Competent Person is someone with the necessary skills, knowledge, and experience to carry out safety-related tasks. Competence is a key component of post Grenfell regulatory reforms.
E
EES (Emergency Evacuation Statement)
A document that records the agreed evacuation strategy and support arrangements for a relevant resident, based on their Person-Centred Fire Risk Assessment (PCFRA). It is part of the Residential Personal Emergency Evacuation Plan (RPEEP) regulations under UK fire safety legislation.
EWS1 (External Wall System Form)
An EWS1 is a document assessing the fire safety of a residential building’s external wall system. It is used by lenders to assess fire risk related to external wall systems on residential buildings.
F
Fire Safety Act 2021
The Fire Safety Act 2021 (in force since May 2022) clarified that the building’s structure and external walls (including windows, balconies, cladding, insulations and fixings) fall within the scope of the Regulatory Reform (Fire Safety) Order 2005. Therefore, the risk of fire relating to the external walls is a matter which should be considered as part of the premises fire risk assessment.
Fire Safety (England) Regulations 2022
The Fire Safety (England) Regulations 2022 (in force since January 2023) and new measures commencing 6 April 2026 supplements the Regulatory Reform (Fire Safety) Order 2005, placing new legal duties on the “Responsible Person” to ensure resident safety, inspect equipment and assist Fire and Rescue Services
FSO (Fire Safety Order)
The Regulatory Reform (Fire Safety) Order 2005 is the primary UK legislation governing fire safety responsibilities in buildings.
FRA (Fire Risk Assessment)
A Fire Risk Assessment (FRA) is a structured evaluation of fire risks within a building and the measures required to reduce those risks. It is a legal requirement under the Fire Safety Order.
FRS / F&RA (Fire and Rescue Service / Fire and Rescue Authority)
The Fire and Rescue Service is responsible for fire prevention, response, and rescue operations across the UK.
G
GRC (Governance, Risk and Compliance)
GRC is a structured approach to aligning organisational goals with risk management and regulatory requirements.
Golden Thread
The Golden Thread refers to a digital, up-to-date record of building information maintained throughout a building’s lifecycle. It is a key requirement under the Building Safety Act.
H
HSE (Health and Safety Executive)
The HSE is the UK’s national regulator for workplace health and safety and hosted the Building Safety Regulator from inception until it was moved to MHCLG in January 2026.
HRB (Higher-Risk Building)
A Higher-Risk Building is typically a high-rise residential building subject to stricter regulatory oversight under the Building Safety Act.
M
MOR (Mandatory Occurrence Reporting System)
Mandatory Occurrence Reporting under the Building Safety Act 2022 requires dutyholders to report serious fire and structural safety risks to the Building Safety Regulator (BSR). One of the 3 key documents (along with Safety Case Report and Resident Engagement Strategy) required by the Building Safety Regulator within 28 days of request.
MHCLG (Ministry of Housing Communities and Local Government)
MHCLG is the Government department responsible for Building Safety and the Fire Service. MHCLG has also hosted the Building Safety regulator as an independent body since January 2026, following its move from the Health and Safety Executive.
O
O&M (Operation and Maintenance Manual)
An O&M manual contains key information about building systems, equipment, and maintenance procedures and forms a key part of the Golden Thread. Provided at handover from construction to occupation.
P
PAP (Principal Accountable Person)
The Principal Accountable Person is the main dutyholder responsible for managing building safety in higher-risk buildings.
PAS (Publicly Available Specification)
A PAS is a fast-tracked specification published by the British Standards Institution (BSI).
Examples include PAS 9980 for fire risk appraisal of external walls.
PCFRA (Person-Centred Fire Risk Assessment)
An assessment focused on a relevant resident’s ability to evacuate safely in a fire, used to identify any support or adjustments they need. It forms part of the Residential Personal Emergency Evacuation Plan (RPEEP) regulations introduced under UK fire safety legislation.
R
RPEEP Regulations (Fire Safety (Residential Evacuation Plans) (England) Regulations 2025)
Regulations commenced 6th April 2026 placing a requirement on the Responsible Person to identify ‘relevant residents’ whose evacuation in the event of a fire may be impaired, offer a Person-Centred Fire Risk Assessment and Emergency Evacuation Statement, share information with the F&RA. These regulations formed a key part of the Grenfell tower Inquiry recommendations.
RRO (Regulatory Reform (Fire Safety) Order 2005)
The RRO is the primary UK legislation governing fire safety responsibilities in buildings. Also referred to as the Fire Safety Order (FSO)
RP (Responsible Person)
The Responsible Person is legally accountable for fire safety within a building under the Fire Safety Order.
RES (Resident Engagement Strategy)
A resident engagement strategy is a structured approach to fostering two-way communication between residents and management, particularly focused on building safety, repairs, and community decisions. One of the 3 key documents (along with Safety Case Report and Mandatory Occurrence Reporting system) required by the Building Safety Regulator within 28 days of request.
S
Safety Case Report
A Safety Case Report is a structured document that demonstrates how building safety risks are being identified, assessed, and managed in a higher-risk building. It is a key requirement under the Building Safety Act and is one of the three key documents (along with Resident Engagement Strategy and Mandatory Occurrence Reporting system) required by the Building Safety Regulator within 28 days of request.
Safety Case
A Safety Case is the overall process of identifying building safety risks and demonstrating how those risks are controlled.
SMS (Safety Management System)
A Safety Management System (SMS) is a structured framework used to manage safety risks, policies, and procedures within a building or organisation. It supports the ongoing management of risks identified in the Safety Case.
U
UK GDPR (UK General Data Protection Regulation)
UK GDPR governs how personal data is collected, processed, and stored.
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An RPEEP (Residential Personal Emergency Evacuation Plan) is an evacuation planning approach for residents in higher-risk residential buildings who may need assistance to evacuate safely in the event of a fire.
RPEEPs became a key topic following the Grenfell Tower Inquiry and are closely linked to ongoing building safety reforms in the UK.
A Fire Risk Assessment (FRA) is a structured process used to identify fire hazards, assess risks, and implement measures to reduce or manage those risks.
FRAs are a legal requirement under the Regulatory Reform (Fire Safety) Order 2005 and must be regularly reviewed and updated.
The Building Safety Regulator (BSR) is the UK authority responsible for overseeing the safety and of higher-risk buildings (fire and structural safety only)
The BSR was established under the Building Safety Act 2022 and operates as an agency of the Ministry of Housing Communities and Local Government.
The Golden Thread refers to a digital, accurate, and up-to-date record of key building information maintained throughout a building’s lifecycle.
The Golden Thread ensures that important safety information is accessible to those responsible for managing building safety, including data used in Safety Case Reports.
A Safety Case Report is a document that demonstrates how building safety risks are identified, assessed, and managed in a higher-risk building.
It must be submitted to the Building Safety Regulator and forms a core part of compliance under the Building Safety Act.
A Safety Case is the overall process of identifying and managing building safety risks.
A Safety Case Report is the formal document that summarises this process and provides evidence to the regulator that risks are being effectively controlled.
The Accountable Person is the individual or organisation legally responsible for managing building safety risks in a higher-risk building.
This role includes maintaining the Golden Thread of information and ensuring compliance with the Building Safety Act.
The Principal Accountable Person (PAP) is the main dutyholder responsible for building safety where there are multiple accountable.
The PAP is responsible for coordinating safety activities and liaising with the Building Safety Regulator.
The Regulatory Reform (Fire Safety) Order 2005 is the main UK legislation governing fire safety in buildings of all types.
It places responsibility on the Responsible Person to carry out fire risk assessments and implement appropriate fire safety measures.
The Responsible Person is the individual legally responsible for fire safety within a building under the Fire Safety Order.
This may be an employer, building owner, landlord, or managing agent, depending on the property.
A Higher-Risk Building (HRB) is typically a residential building that meets specific height or occupancy thresholds defined under the Building Safety Act.
These buildings are subject to stricter regulatory requirements and oversight by the Building Safety Regulator.