The purpose of this document is to contribute to the development and promotion of the Netherlands Institute for Sound and Vision (Nederlands Instituut voor Beeld en Geluid) as a leading audio-visual archive that has identified sustainable digital preservation as its primary business. With that in mind, this document explicitly outlines all principles and choices that form the basis for execution of this business. The digital objects and their lifecycle are defined, services and guarantees are described in detail and a record is made of how Sound and Vision (Beeld en Geluid) complies with technical and staff quality requirements. By documenting the current policy and the standards employed, it is possible to account to all parties that entrust their digital collections to Sound and Vision, to the users of those collections, and to subsidy-awarding bodies. The document also offers the staff of Sound and Vision transparency and clarity on the rules and procedures that apply. This document is also available in Dutch and was updated with a new edition in 2019.