Unrestricted Access

Description searches over 60 databases and over 2200 selected websites from 15 federal agencies, offering 200 million pages of authoritative U.S. government science information including research and development results. is governed by the interagency Alliance.


A Help link is available in the main top navigation area.

For help using these indexes see: How do I find an article on my topic?

User tools and features

Alerts, mobile site, citation export.

Dates covered

Most recent information.

Updating frequency

As new information becomes available.


Fifteen U.S. government agencies.

Type of coverage

Scientific information collected by government agencies.

Print counterpart or
related resources

Individual journal articles.

Producer/content provider

U.S. government agencies

Vendor/electronic presentation provider

U.S. government agencies