The HSE formally released the Technical Guidance HSG274: Part 2

The HSE formally released the Technical Guidance HSG274: Part 2 – The control of legionella bacteria in hot and cold water systems. This guidance replaces the interim guidance which has been published on the HSE website since November 2013 and forms the final part in the three part series of Technical Guidance on the control of legionella within water systems.

Here’s the PDF
Legionnaires’ disease Technical guidance. Part 2: The control of legionella bacteria in hot and cold water systems HSG247 (http://www.hse.gov.uk/pubns/priced/hsg274part2.pdf)