IET 18th Ed Amd 4 "Site Ready" Orange Book Bundle (BS 7671 + OSG + GN3)
 
The complete professional kit for the 2026 update. Includes the "Orange Book" Regs, On-Site Guide, GN3, and pre-printed Chapter Flags.
 
Be fully prepared for the April 15, 2026 transition. This "Site Ready" bundle is curated for installers and inspectors who need the full suite of Amendment 4 (BS 7671:2018+A4:2026) documentation alongside the tools to use them efficiently.
 
What’s inside this Bundle:
IET Wiring Regulations Amendment 4 (The Orange Book): The mandatory new standard featuring the new Chapter 57 on Stationary Secondary Batteries and updated PoE requirements.
On-Site Guide (Amd 4): The essential "pocket" reference for quick domestic and commercial circuit information.
Guidance Note 3 (Inspection & Testing): The industry-standard guide for the certification and reporting of electrical installations.
Premium Docs-Store Chapter Flags: High-visibility, adhesive tabs tailored for the Orange Book. Find the new battery storage regulations and medical location sections in seconds.
 
Key Amendment 4 Changes Covered: 
New safety protocols for Battery Storage Systems. Revised guidance on Functional Earthing and Power over Ethernet. Significant updates to Section 710 (Medical Locations).
 
Stay compliant and save. By purchasing this collective set, you ensure you have every resource required for the 2026 update at a better price than buying individually.