Because of a lapse in government funding, the information on this website may not be up to date, transactions submitted via the website may not be processed, and the agency may not be able to respond to inquiries until appropriations are enacted.
The NIH Clinical Center (the research hospital of NIH) is open. For more details about its operating status, please visit cc.nih.gov.
Updates regarding government operating status and resumption of normal operations can be found at USA.gov.
Thank you for visiting one of the National Institute on Drug Abuse websites.
Protecting your privacy is very important to us. We do not collect any personally identifiable information (PII) about you during your visit to NIDA Web sites unless you choose to provide it to us. We do, however, collect some data about your visit to our Web site to help us better understand how the public uses the site and how to make it more helpful. We collect information from visitors who read, browse, and/or download information from our Web site. NIDA never collects information for commercial marketing or any purpose unrelated to NIDA's mission and goals.
Please contact us. NIDA staff responds to the submissions. Only designated staff members requiring access to the emails to respond may view or answer them.
Types of Information Collected
When you browse through any Web site, certain information about your visit can be collected. We automatically collect and temporarily store the following type of information about your visit:
- Domain from which you access the Internet
- IP address (an IP address is a number that is automatically assigned to a computer when surfing the Web)
- Operating system and information about the browser used when visiting the site
- Date and time of your visit
- Pages you visited
- Address of the Web site that connected you to a NIDA Web site (such as google.com or bing.com)
We use this information to measure the number of visitors to our site and its various sections and to help make our site more useful to visitors.
How NIDA Collects Information
NIDA web sites use Google Analytics measurement software to collect the information in the bulleted list in the Types of Information Collected section above. Google Analytics collects information automatically and continuously. No personally identifiable information is collected. The NIDA staff conducts analyses and reports on the aggregated data from Google Analytics. The reports are only available to NIDA web staff, and other designated staff who require this information to perform their duties.
NIDA retains this data as long as needed to support the mission of the NIDA web sites.
The Office of Management and Budget Memo M-10-22, Guidance for Online Use of Web Measurement and Customization Technologies (PDF, 106KB) allows Federal agencies to use session and persistent cookies.
When you visit any Web site, 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 for you to use the dynamic features of Web pages. Cookies from NIDA Web pages only collect information about your browsers visit to the site; 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.
Session Cookies: We use session cookies for technical purposes such as to enable better navigation through our site. These cookies let our server know that you are continuing a visit to our site. The OMB Memo 10-22 Guidance defines our use of session cookies as Usage Tier 1Single Session. The policy says, This tier encompasses any use of single session web measurement and customization technologies.
Persistent Cookies: We use persistent cookies to enable Google Analytics to differentiate between new and returning NIDA visitors. Persistent cookies remain on your computer between visits to NIDA web sites until they expire. 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 information and resources at the NIDA web sites. Instructions for disabling or opting out of cookies in the most popular browsers are located at http://www.usa.gov/optout-instructions.shtml Please note that by following the instructions to opt-out of cookies, you will disable cookies from all sources, not just those from NIDA.
How Personal Information Is Protected
You do not have to give us personal information to visit the NIDA Web sites. However, if you choose to receive alerts or e-newsletters, we collect your email address to complete the subscription process.
If you choose to provide us with personally identifiable information, that is, information that is personal in nature and which may be used to identify you, through an e-mail message, request for information, paper or electronic form, questionnaire, customer satisfaction survey, epidemiology research study, etc., we will maintain the information you provide only as long as needed to respond to your question or to fulfill the stated purpose of the communication.
This site is maintained by the U.S. Government. 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 employ 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 an individual.