We recommend printing in portrait format. Adobe has a large collection of support resources if you have problems installing or using the Acrobat Reader software. Navigation - Navigation through the site is straightforward. There are five levels of hierarchy, most of which are always visible to the user. The first and second levels are with the tabs at the top of the page.
Tabs are color coded for easy reference.
The third level is in the right column, as buttons. The fourth level is either at the top of the page, or occasionally, on the right, as a pulldown menu. The fifth level are text links at the top of the page. This site is complex and also references other sites. Back and forward buttons have been added to each page to ease complex navigation through difficult links.