Sorry, we were unable to verify the authenticity of this link. If you would like to proceed anyway, click the link below.

https://content.govdelivery.com/attachments/topic_files/UKDEVONCC/UKDEVONCC_600/2016/08/31/file_attachments/612771/Maintenance%2BHierarchy%2BReclassification%2BGuidelines%2Bv3.2__612771.pdf