The Town and Country Planning (Environmental Impact Assessment) Regulations 2017 (EIAR 2017), SI 2017/571 relate to certain developments which may give rise to significant effects on the environment, and allow environmental implications to be considered as part of a planning application by the relevant planning authority. The EIAR 2017, SI 2017/571, Sch 1, specifies types of development for which environmental impact assessment (EIA) is mandatory, and, developments falling into EIAR 2017, SI 2017/571, Sch 2, are considered on a case by case basis for whether EIA is required (known as screening). EIAR