Privacy Policy

General Information

The ClinRegs website is provided as a public service by the National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH). NIAID does not disclose, give, sell, or transfer personal information about visitors to this website unless required to do so by law.

Protecting your privacy is very important to us. We do not collect personally identifiable information (PII) about you during your visit to this website unless you choose to give it to us. We do, however, collect some data about visits to this site to help us better understand how the public uses it and how to make it more helpful. We collect information from visitors who read, browse, and/or download information from this site. We never collect information for commercial marketing or any purpose unrelated to the NIAID mission and goals.

How NIAID Collects Information on the ClinRegs Website

We automatically collect a limited amount of information about the use of this website, primarily for statistical purposes (that is, to measure the numbers of visitors to various sections of the site). This information also may be helpful when we consider changes to this site to make it more useful to visitors. We do not attempt to identify individual users or their usage habits, except when it may be required for authorized law enforcement investigations.

We also use an online survey to collect opinions and feedback from users regarding their satisfaction with this website. This survey does not collect personally identifiable information (PII). Participation in the survey is voluntary. If you do not take the survey, you still have access to the identical information and resources on this site as those who do take the survey. Answers to the survey help us improve this site, making easier to use and more responsive to the needs of visitors.

We analyze and report on the aggregated data from the survey. The reports are available only to NIAID staff and contractors who need this information to perform their duties.

How NIAID Uses Cookies on the ClinRegs Website

The Office of Management and Budget (OMB) Memo M-10-22, Guidance for Online Use of Web Measurement and Customization Technologies, allows federal agencies to use session and persistent cookies.

When you visit any website, its server may generate a piece of text known as a "cookie" to place on your computer. The cookie allows the server to "remember" specific information about your visit while you are connected. The cookie makes it easier to use some features of Web pages. Requests to send cookies from ClinRegs Web pages are designed to collect information about your browser session only; they do not collect personal information about you.

There are two types of cookies: single session (temporary) and multi-session (persistent). Session cookies last only as long as your Web browser is open. Once you close your browser, the cookie disappears. Persistent cookies are stored on your computer for longer periods.

How Are Temporary "Session" Cookies Used?

We use session cookies for technical purposes such as improving navigation through this site. These cookies let our server know that you are continuing a visit to this site. The "session" cookie is not permanently stored on your computer. The cookie and the information about your visit are automatically destroyed shortly after you close your browser to end the session.

The OMB Memo 10-22 Guidance defines our use of session cookies as "Usage Tier 1—Single Session." The policy says, "This tier encompasses any use of single session Web measurement and customization technologies."

How Are "Persistent" Cookies Used?

We use persistent cookies to help us differentiate between new and returning visitors to this site. Persistent cookies remain on your computer between visits to this site until they expire. We do not use this technology to identify you or any other site visitor.

We use "persistent" cookies to block repeated invitations to take the feedback survey. We also use persistent cookies to enable us to measure and understand how new and returning visitors use this site over time. We use Google Analytics on this site.

The OMB Memo 10-22 Guidance defines our use of persistent cookies as "Usage Tier 2—Multi-session without Personally Identifiable Information (PII)." The policy says, "This tier encompasses any use of multi-session Web measurement and customization technologies when no PII is collected."

How to Opt Out or Disable Cookies

If you do not wish to have session or persistent cookies placed on your computer, you can disable them using your Web browser. If you opt out of cookies, you will still have access to all the information and resources on the ClinRegs website.

Instructions for disabling or opting out of cookies in the most popular browsers are located at Please note that by following the instructions to opt out of cookies, you will disable cookies from all sources, not just those from the ClinRegs website.

How Is Personal Information Protected?

You do not have to give us personal information to visit the ClinRegs website.

If you choose to give us personally identifiable information about yourself through an email message, form, survey, etc., we keep the information only as long as needed to respond to your question or to fulfill the stated purpose of the communication.

For further information about the NIH privacy policy, please contact the NIH Senior Official for Privacy at, call 301-451-3426, or visit


NIAID does not disclose, give, sell, or transfer any personal information about this website's visitors, unless required for law enforcement or by statute.


The U.S. government maintains the ClinRegs website. It is protected by various provisions of Title 18, U.S. Code. Violations of Title 18 are subject to criminal prosecution in federal court.

For site security purposes and to ensure that this service remains available to all users, we use software programs to monitor traffic to identify unauthorized attempts to upload or change information or otherwise cause damage. In the event of authorized law enforcement investigations, and pursuant to any required legal process, information from these sources may be used to help identify a person.