In order to access PSID data you must first register and obtain a username and password. This username/password combination must be used
whenever you wish to download data files. By registering at this site, you agree to the Conditions of Use governing access to PSID data.
You can change your registration information at any time by simply logging into this site.
Through your registration, we are able to convey to our sponsors the size and diversity of our user community, allowing us to continue to
collect these important data. Registered users will receive user support and information related to release of new or modified data.
The information you provide will not be used for commercial purposes, and it will not be redistributed to third parties. For more information
concerning privacy issues, please read our Privacy Statement.