Accessibility Statement

The Physikalisch-Technische Bundesanstalt (PTB) endeavours to make the "www.ptb.de" system accessible in accordance with the national legislation implementing Directive (EU) 2016/2102 of the European Parliament and of the Council.

This declaration on accessibility (as of 01 July 2026) applies to the currently accessible version of this website (www.ptb.de).

The accessibility of www.ptb.de was already considered during development. Colour contrasts are selected in such a way that the contrast values required by the Barrier-free Information Technology Ordinance (BITV 2.0) are achieved. We also ensure that all content on the site can be navigated using the keyboard in combination with a screen reader. Despite extensive planning, not all of the system's content is completely accessible. An improvement is planned or in progress in all areas where this is technically and content-wise possible.

For example, the following features of the website are not or not yet accessible:

• The security queries (captchas) are not accessible.

Arbitration procedure

The Federal Government Commissioner for Matters Relating to Disabled Persons has an Arbitration Service in accordance with Section 16 of the Ger­man Act on Equal Op­por­tu­ni­ties for Per­sons with Dis­abil­i­ties ("Behindertengleichstellungsgesetz – BGG"). The Arbitration Service is tasked with settling conflicts between persons with disabilities and public authorities of the federal administration. You can ask the Arbitration Service to intervene if you are not satisfied with the answers you have received from the contacts given above. There are no winners or losers in this process; rather those involved try to resolve their conflict together out of court with the aid of the Arbitration Service.

The arbitration procedure is free of charge, and there is no need to call upon legal counsel. You can find all the information about such arbitration procedures on the website of the Arbitration Service. This website will also give you information about how an arbitration procedure works and how you apply for an arbitration procedure. You can also apply for an arbitration procedure in "Leichte Sprache" (Easy Read), in German only or in "Deutsche Gebärdensprache" (German Sign Language). You can reach the Arbitration Service at the following address:  

Arbitration Service according to the German Act on Equal Opportunities for Persons with Disabilities
Within the Office of the Federal Government Commissioner for Matters Relating to Disabled Persons
Mauerstraße 53
10117 Berlin
Germany
Phone: +49 (0)30 18 527-2805
Fax: +49 (0)30 18 527-2901
Email: info(at)schlichtungsstelle-bgg.de
Internet: www.schlichtungsstelle-bgg.de