a certificate issued by a Local Planning Authority on application to determine whether existing or proposed development is lawful. The decision to issue a certificate is a legal decision applied on consideration of evidence submitted and does not involve considering planning policy.
an action in the High Court to challenge the decision of a public body, typically the Local Authority or a Planning Inspector.
the body primarily responsible for planning controls, typically the District or Borough Council although in National Parks these functions are discharged by the National Park Authority. For waste-related matters and mineral extraction the relevant planning body is the County Planning Authority (typically the County Council).