Off Campus Access FAQ

What is Off-campus Access (OCA)?

Many online resources available through the UCSC Library site are licensed by the university. Off-campus use is restricted to active UCSC faculty, staff, and students. To access these licensed resources from off-campus, Login to OCA with your 14-digit library barcode number and last name.

"Off-campus" refers to locations outside the UCSC campus and buildings. Classrooms, student housing, and offices, including the University Business Park and ITS Delaware, are all considered on-campus.

Problems logging in to OCA?


Make sure you are entering all 14 digits of your library card number. Please note: Your library card must be activated before using OCA. If you have never checked out library materials or activated your card, contact a library circulation desk to get started. 

  • NOTE: Your IP address will be blocked after 10 unsuccessful login attempts within 5 minutes. If you believe your IP address has been blocked, contact the OCA administrators at to remove the block.


Off-campus use is restricted to active UCSC faculty, staff, and students of the University of California, Santa Cruz. If you believe you are receiving this message in error, please contact a library circulation desk.


Because of a large amount of attempted unlicensed use in China, Russia, Ukraine and Iran, we've blocked them from using the OCA server. We DO want to enable valid UCSC users to use the OCA server from inside those countries. Just email with your name and UCSC email address and we'll enable your individual library barcode for Off-campus Access.

Problems accessing a journal or database?

Login/password prompt, or request for payment

The problem is probably one the following:

  • You've gone straight to the journal's Web site from off-campus without going through the UCSC Library's Web site. Try using the OCA Bookmarklet. This will allow you to log in to OCA and reload the journal Web site through Off-campus Access.
  • You've found an online journal (or issue of a journal) to which the UCSC Library does NOT subscribe. It is often difficult to discern which journal issues are in the UCSC Library's holdings once you're on the publisher's site.
  • The Library may need to adjust our configuration of Off-campus Access for the particular database or journal site.
Can I use OCA to access SciFinder Scholar from off-campus?

Yes.  You must log into both OCA and into SciFinder via an account which requires a current UCSC campus email address. Additional plugin software is also required. Links to a one-time campus registration page and software download can be found on this UC SciFinder Scholar Welcome page.

My computer is behind a corporate firewall. Can I still use OCA?

If you are behind a firewall and require access to UCSC Library resources, your network administrator will need to create a firewall rule that specifies the UCSC Library's proxy server as a Trusted site. The address to use is: Network administrators requiring further information can contact the OCA administrators at

For more help, contact the ITS Help Desk at (831) 459-HELP or