Approximately 1/3 of the Homeland Security Digital Library (HSDL) resources are not openly available to the public at large. See the three options below to determine whether you are eligible for further access.
Individual Access
Type: username/password authentication with account from the NPS Center for Homeland Defense and Security (CHDS).Eligibility: U.S. citizens who are:
- federal, territorial, tribal, state, or local U.S. government officials;
- members of the U.S. military;
- homeland security researchers and academics; or
- security staff protecting organizations vital to U.S. infrastructure
Access duration: unlimited while eligible
Request access:
Organization-wide Access
Type: IP range authentication for your networkEligibility: U.S. organizations that are:
- military installations;
- federal, territorial, tribal, state, or local U.S. government agencies; or
- public-sector research institutions or university libraries
Access duration: unlimited while eligible
Contact chdstech@nps.edu with any questions about your IP ranges or configuring EZ-Proxy.
Restricted Collection Access
About the Restricted CollectionType: username/password authentication
Pre-requisite: active, individual account access (see above)
Eligibility: U.S. citizens who are:
- federal, territorial, tribal, state, local U.S. government officials; or
- active members of the U.S. military
You must be able to verify this eligibility with an official email address issued by your agency.
Access duration: re-request every six months
Request access: