Public sector bodies are increasingly making their documents available for re-use in a proactive manner, by ensuring online discoverability and actual availability of documents and associated metadata in an open format that can be machine-readable and that ensure interoperability, re-use and accessibility. Documents should also be made available for re-use following a request lodged by a re-user. In those cases, the time limit for replying to requests for re-use should be reasonable and in accordance with the equivalent time for requests to access the document under the relevant access regimes. Public undertakings, educational establishments, research performing organisations and research funding organisations should however be exempt from that requirement. Reasonable time limits throughout the Union will stimulate the creation of new aggregated information products and services at pan-Union level. This is particularly important for dynamic data (including environmental, traffic, satellite, meteorological and sensor generated data), the economic value of which depends on the immediate availability of the information and of regular updates. Dynamic data should therefore be made available immediately after collection, or in the case of a manual update immediately after the modification of the dataset, via an application programming interface (API) so as to facilitate the development of internet, mobile and cloud applications based on such data. Where this is not possible due to technical or financial constraints, public sector bodies should make the documents available in a timeframe that allows their full economic potential to be exploited. Specific measures should be taken in order to lift relevant technical and financial constraints. Should a licence be used, the timely availability of documents may be a part of the terms of the licence. Where data verification is essential in the light of justified public interest reasons, in particular for public health and safety, dynamic data should be made available immediately after verification. Such essential verification should not affect the frequency of the updates.
Recital ODD 59Tools that help potential re-users to find documents available for re-use and the conditions for re-use can facilitate considerably the cross-border use of public sector documents. Member States should therefore ensure that practical arrangements are in place that help re-users in their search for documents available for re-use. Examples of such practical arrangements are assets lists, which should preferably be accessible online, of main documents (documents that are extensively re-used or that have the potential to be extensively re-used), and portal sites that are linked to decentralised assets lists. Member States should also facilitate the long-term availability for re-use of public sector information, in accordance with the applicable preservation policies.