# Commission Delegated Regulation (EU) 2017/654 of 19 December 2016 supplementing Regulation (EU) 2016/1628 of the European Parliament and of the Council with regard to technical and general requirements relating to emission limits and type-approval for internal combustion engines for non-road mobile machinery, Division 4.4.2

Extent: E+W+S+N.I.

The manufacturer shall demonstrate to the satisfaction of the approval authority that the declared EDP category is appropriate. Data to support a manufacturer's choice of EDP category, for a given engine family, may include but are not limited to:
surveys of the life spans of the equipment in which the subject engines are installed,
engineering evaluations of field aged engines to ascertain when engine performance deteriorates to the point where usefulness and/or reliability is impacted to a degree sufficient to necessitate overhaul or replacement,
warranty statements and warranty periods,
marketing materials regarding engine life,
failure reports from engine customers, and
engineering evaluations of the durability, in hours, of specific engine technologies, engine materials or engine designs.

---
Source: https://www.legislation.gov.uk/eur/2017/654/annex/III/division/4/division/4.4/division/4.4.2 (the official version)
Page: https://openlegislation.uk/eu-regulation-2017-654/annex-III/division-4/division-4.4/division-4.4.2
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.