Access to the Homeland Security Digital Library

Over half of the Homeland Security Digital Library (HSDL) resources are not openly available to the public at large. See the options below to determine whether you are eligible for further access.


Individual Account

Type: username/password authentication

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

Individual Account request form (on the chds.us website)


Organization-wide Account

Type: IP range authentication for your network

Eligibility: 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 hsdl@nps.edu with any questions about your IP ranges or configuring EZ-Proxy.


Restricted Collection Account

About the Restricted Collection

Type: username/password authentication

Pre-requisite: an active, individual account (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

Go to the Restricted Collection

If you do not have access, you will be prompted for more information after you sign in with your individual account.