Resources
A collection of free downloadable tools and documents from our articles.
Pas-91 and CAS Checklists
Our free PAS-91 and CAS checklists provides a structured framework to help you build your PQQ in line with industry standards. Each section in the contents links directly to a corresponding tab, making it easy to navigate and use.
From: What Is a Pre-Qualification Questionnaire (PQQ)? The Ultimate Guide (2026)
Free O&M Templates
Download our professionally structured Operation & Maintenance (O&M) templates, designed to help you organise, present and manage O&M information efficiently. These templates are provided free of charge for general guidance and must be reviewed, completed and adapted to suit your specific project requirements. Liaison Systems Ltd accepts no responsibility for the final content or use of completed O&M manuals. By downloading, you agree to our terms of use included within the download.
From: How to Simplify Your Operations and Maintenance (O&M) Manual Process
Operation & Maintenance (O&M) Manual Checklist
This Operation & Maintenance (O&M) Manual Checklist has been developed by our team, drawing on many years of experience auditing and quality-reviewing O&M submissions, to ensure all documentation issued at project handover is accurate, complete and fully compliant with contractual and statutory requirements.
From: How to Simplify Your Operations and Maintenance (O&M) Manual Process
Free PAS-91 Checklist
We have created a simple checklist based on the British PAS-91 standard to help you to build a pre-qualification questionnaire that will both reduce supply chain risk and ensure you're procuring quality suppliers. Complete the form below to receive copy.
From: What is PAS-91?
CAS Checklist
Our free CAS checklist provides a structured framework to help you build your PQQ in line with the Common Assessment Standard (CAS). Each section in the contents links directly to a corresponding tab, making it easy to navigate and use.
From: PAS 91 vs Common Assessment Standard: What’s the Difference?