The links on the left side of each page show related pages at the same level as the current page and allow you to move "sideways" to related topics. For example, you can easily move to other "Site Help" topics by selecting the links on the left side of this page.

The website complies with World Wide Web Consortium (W3C) Web Content Accessibility Guidelines (WCAG) 2.0 level AA. This will enable people with visual impairments access the website using assistive technologies, such as screen readers. The information of the website is accessible with different screen readers, such as JAWS, NVDA, SAFA, Supernova and Window-Eyes.

The Back to the Top icon appears on pages to provide an easy way to get back to the top of the page. Select the icon to go up to the top.

The Exit icon is placed directly after an external link to let you know that the link is going to take you away from the AERB site. These links are provided as a service and do not imply any official endorsement of or responsibility for the opinions, ideas, data, or products presented at these locations or guarantee the validity of the information provided. (For more information, refer to the Site Disclaimer.)

See our Plugins, Viewers, and Other Tools for information on icons associated with document formats (e.g., PDF) used at this site.