The GBV network headquarters (VZG) endeavors to ensure that its websites and mobile applications comply with Directive (EU) 2016/2102 of the European Parliament and Council, the Lower Saxony Disability Equality Act (NBGG) and the Lower Saxony Ordinance on Accessible Information Technology for Public Bodies (NBITVO). to make it barrier-free accessible.

This Accessibility Statement applies to the Website

Status of compatibility with the requirements

Due to the self-assessment check according to the BITV test, the website is only partially compatible with the aforementioned requirements. We are currently working to resolve the barriers as quickly as possible.

The website and its functionality and form of presentation on common devices comply with the Web Content Accessibility Guidelines 2.1 (WCAG 2.1) Level AA and the requirements of the harmonized European standard EN 301 549 V2.1.2 ( 08-2018) partially compatible.

Incompatibility with BITV 2.0

  • Our websites do not contain any information in sign language or plain language.

After consultation with relevant associations, the reading function of personal screen readers is preferred, which is why the website does not offer this option. We try to use language that is as simple as possible. Due to the complex content that is at least partially published on our websites, simple language design (e.g. avoiding technical terms) is not always possible.

  • Documents embedded in the websites (.pdf, .doc, etc.)
Reason: Disproportionate burdenDocuments posted before July 2020 may not be accessible. Due to the very large number of documents, they cannot be converted into an accessible format because some of the original formats are missing and subsequent processing of the documents is disproportionately labor-intensive. For newly published PDF documents, we endeavor to provide a barrier-free version as soon as possible. If you need a specific PDF file that is not yet accessible, please contact us at
Reason: Exception § 9 Paragraph 2 No. 2 NBGG
Documents provided by third parties (e.g. other organizations, ministries, etc.) may not be accessible.

  • Videos embedded in the websites

It has not yet been possible to provide the videos with an audio description.

  • Alternative text content for images is largely missing
  • A sensible order of the tabs is not always given when CSS is switched on

  • The website can only be used partially without a mouse
  • Content is not always structured continuously (when CSS is switched on).

  • not all areas can be skipped
  • the current position of the focus is not always visible
  • dthe visible label is not a continuous part of the accessible name

  • the main language of the site is not specified
  • Words and paragraphs in other languages are not marked
  • Correct syntax is not always guaranteed
  • Not all interactive controls have programmatically discoverable names and roles
Reason: A majority of the images without alternative text serve as decorative elements and are not visible when CSS is turned off. As the GBV (VZG) network headquarters, we offer an extensive website, so errors cannot be completely ruled out. The identified deficits and deficiencies are currently in a continuous improvement process that is being gradually addressed. We are also working on a new, barrier-free version of our website.
  • Cartography within the website
A cartographic representation is a helpful and very useful addition of information. Cartography is essentially a pictorial representation, which therefore cannot meet the requirements of BITV

Creation of this accessibility statement

This declaration was created on 03/01/2024 and based on the BITV / WCAG self-assessment

Report barriers: feedback and contact details

Please inform us if you come across content on our websites that requires explanation or content that is difficult to access:

GBV network headquarters (Verbundzentrale des GBV (VZG))
Platz der Göttinger Sieben 1
37073 Göttingen

Arbitration Procedure

If you do not receive satisfactory answers from the above contact option, you can submit an application to initiate arbitration proceedings in accordance with the Lower Saxony Disability Equality Act (NBGG) at the arbitration board set up by the State Commissioner for People with Disabilities in Lower Saxony.

The arbitration board according to Section 9 d NBGG has the task of resolving disputes between people with disabilities and public bodies in the state of Lower Saxony on the subject of accessibility in IT. The arbitration procedure is free of charge. There is no need to involve legal counsel.

You can contact the arbitration board directly at:

Hannah-Arendt-Platz 2
30159 Hannover
Tel.: 0511/120-4010
Fax: 0511/120-99 4010

Note to user

Dear user,

In response to current developments in the web technology used by the Goobi viewer, the software no longer supports your browser.

Please use one of the following browsers to display this page correctly.

Thank you.