Our Web site provides some information in Portable Document Format (PDF), which is a file format that enables you to view and print a document so that it appears exactly as the author created it and such that you do not need the same application or fonts used to create it. We occasionally use and link to PDF files so that we can communicate certain kinds of information more accurately, easily, and effectively than we can with other methods. To view PDF documents, you must have software called Adobe Reader (formerly known as Acrobat Reader) installed on your computer. Adobe Reader is available free of charge from a software company called Adobe Systems, Inc. To use it, download it to your computer, then install it. Instructions are provided by Adobe when you begin the download.