An Inspector's Guide to Sewerage Law is intended to assist operations staff and Other practitioners in England and Wales (Scottish law is different), to understand the complex subject of sewerage law and to help them in discussions with customers. It describes the law as it relates to the ownership and maintenance responsibility for drains and sewers following the transfer of private sewers and lateral drains on 1^* October 2011, and the duties and powers of Sewerage Undertakers. This third edition was amended April 2013.