This is a circular letter to announce the publication of a new Approved Document L 2026 (Conservation of fuel and power and the minimisation of greenhouse gas emissions) Volumes 1 and 2, and Approved Document F, Ventilation, Volume 1.
Guidance
This is a circular letter to announce the publication of a new Approved Document L 2026 (Conservation of fuel and power and the minimisation of greenhouse gas emissions) Volumes 1 and 2, and Approved Document F, Ventilation, Volume 1.