Compliance Guides | Liaison Systems Insights

06 Jul 2026

Is Your Supply Chain Data Ready for RIDDOR Changes?

The Health and Safety Executive (HSE) is consulting on reforms to the Reporting of Injuries, Diseases and Dangerous Occurrences Regulations (RIDDOR) 2013. The Civil Engineering Contractors Association (CECA) has now responded, broadly backing the direction of travel while pressing for rules that are clear, proportionate and practical for the sector. For contractors, the headline is simple: how you report incidents is about to change. What is less obvious, but more important, is that the organisations best placed to adapt will be the ones who already hold clean, accessible information on their people, their sites and their supply chains. That data groundwork has to be in place before the reforms land, not scrambled together afterwards.

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01 Jul 2026

The Building Safety Act 2022 Explained: A Complete Guide for Construction Professionals

The Building Safety Act 2022 is the most significant change to building safety regulation in England in a generation. Introduced in response to the Grenfell Tower tragedy and the Hackitt Review, it creates a stricter, more accountable system for designing, constructing and managing buildings, with the strongest controls reserved for higher-risk buildings (HRBs). The Act introduces a new dutyholder regime aligned with CDM 2015, a three-stage Gateway approval process, a legal requirement for the Golden Thread of information and a comprehensive set of duties for managing buildings once they are occupied. It also established the Building Safety Regulator, which in January 2026 moved out of the Health and Safety Executive to become a standalone body, with further reform towards a single construction regulator already underway. This guide explains what the Act covers, who it affects, and the practical steps construction and supply chain teams should be taking now.

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08 Jun 2026

What Is the Golden Thread? A Guide for Construction Professionals

The construction industry has undergone significant change in recent years with building safety, compliance and accountability becoming key priorities for clients, contractors, developers and building owners. One of the most important concepts to emerge from these changes is the Golden Thread. Introduced following Dame Judith Hackitt's review of building regulations and fire safety, the Golden Thread aims to ensure that accurate, reliable, and accessible information is maintained throughout the entire lifecycle of a building. The Golden Thread is not simply about compliance; it is about ensuring that the right people have access to the right information at the right time. From design and construction through to operation, maintenance, refurbishment and eventual decommissioning, the Golden Thread provides a continuous flow of trusted information that supports safer, better managed buildings.

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25 May 2026

Common Assessment Standard vs SSIP: What's the Difference?

The Common Assessment Standard (CAS) and SSIP (Safety Schemes in Procurement) are often confused, but they cover very different ground. SSIP deals only with health and safety competence and provides mutual recognition between H&S assessment schemes. CAS is far broader - a full pre-qualification framework covering 10 areas, of which health and safety is just one. CHAS and Constructionline are not standards at all; they are assessment bodies that can certify you against both SSIP and CAS. This guide explains how they relate, where they overlap, and which your business actually needs.

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25 May 2026

PPN 03/24 Explained: What It Means for Construction Pre-Qualification

Procurement Policy Note PPN 03/24 is UK Government guidance, issued in March 2024, that directs public sector contracting authorities to use the Common Assessment Standard (CAS) when pre-qualifying suppliers for construction works. For public sector projects above the £5.337 million threshold, CAS is now the preferred pre-qualification method, replacing PAS 91. PPN 03/24 is guidance to buyers rather than a law imposed on contractors - but in practice it means CAS compliance is increasingly a gate to public sector construction work. This guide explains what PPN 03/24 says, who it affects and what suppliers and buyers should do about it.

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25 May 2026

The Common Assessment Standard Checklist: All 10 Sections Explained

The Common Assessment Standard (CAS) question set is divided into 10 sections, each covering a different area of compliance and risk management. To pass your audit, you need the right evidence ready for each one - not just a yes/no answer. This checklist explains all 10 CAS sections, what each looks for, and the documents you should have to hand before you start. Use it to gap-check your own readiness, then download our free CAS checklist to track your progress section by section.

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25 May 2026

What Is the Common Assessment Standard (CAS)? A Complete Guide

The Common Assessment Standard (CAS) is the UK construction industry's standardised pre-qualification questionnaire (PQQ), developed by Build UK. It replaced PAS 91 - which was withdrawn by BSI in April 2023 and is now the preferred pre-qualification method for public sector construction procurement under Procurement Policy Note PPN 03/24. CAS uses a single industry-agreed question set, divided into 10 sections, that lets a supplier prove their capability and compliance once and share it with multiple buyers. The current Version 5 (published 1 July 2025) made the Building Safety section mandatory. Around 21,000 suppliers now hold CAS certification through one of seven Recognised Assessment Bodies.

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20 May 2026

How to Score Supplier Risk

Not all suppliers carry the same level of risk. Some suppliers may be financially stable, highly compliant and operationally reliable, while others may introduce significant risks that could impact project delivery, compliance, safety or reputation. However, many organisations still assess suppliers inconsistently, often relying on subjective judgement, spreadsheets or incomplete information. A structured supplier risk scoring process helps organisations make more informed decisions by identifying, measuring and prioritising supplier risk in a consistent and measurable way. This article explains how to score supplier risk step by step and includes a practical supplier risk matrix approach that can be used across construction and supply chain operations.

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11 May 2026

The Hidden Risks of Inaccurate Supplier Data in Construction Supply Chains

Accurate supplier data is the foundation of effective supply chain management, yet it is often overlooked. In construction, where supply chains are complex and compliance requirements are strict, poor supplier data can create significant operational, financial and compliance risks. Something as simple as an incorrect company name, outdated insurance information or duplicate supplier records can lead to delays, audit failures, payment issues and exposure to unnecessary risk. As organisations increasingly rely on data to make decisions, maintaining accurate supplier information is no longer an administrative task, it is a critical part of supply chain governance.

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04 May 2026

Supply Chain Management in Nuclear Energy: Managing Risk, Safety and Compliance

In nuclear energy, supply chain management is not just about efficiency, it’s about safety, compliance and long-term reliability. Organisations operate in one of the most highly regulated environments in the world, where every supplier, component and process must meet strict international standards. With nuclear programmes designed to operate for decades, supply chains must be resilient, transparent and continuously monitored to ensure safe and uninterrupted operations.

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