Coronavirus (COVID-19) Updates: the COD Library building is closed until further notice.

Is there a way to search for .gov sites only on Google?

From Google's homepage, click on Advanced Search.  At the bottom of this page, you can include a particular domain, such as .gov, or an entire website address.  Now your search will be limited to sites with this domain or be limited to a particular website.

For more Google tricks, visit Google's Web Search Help page