Approved Document E is a document approved and issued by the Secretary of State, with the purpose of providing practical guidance with respect to the requirements of the Building Regulations with regards resistance to the passage of sound. The document outlines particular requirements and examples of solutions for some of the more common building situations. There may well be alternate ways to achieve compliance to regulations, thus there is no obligation to follow solutions contained in the document, but adoption of the guidance is the simplest way to comply.
The latest version of the document was published in 2015 and has been effective from the 6th April 2015, incorporating amendments in 2004, 2010, 2013 and 2015 to the original 2003 edition. It provides guidance for compliance with the requirements of E1, E2, E3 and E4 of Schedule 1 of the Building Regulations.