The H4 Odour Management Guidance has been recently revised
The Environment Agency regulates odours under the Environmental Permitting Regulations by means of H4 Odour Guidance which focused on activities under the Pollution and Prevention Control (PPC) Regulations. This document is well known and it is widely used not only in the UK, but also in many other countries as reference guidance.
This document was recently revised and in June 2009 was available on the net, for comments and suggestions into an open consultation procedure. After the closing date on the 13th of October 2009, this document is about to be published.