In order to take full advantage of all features of the "Rat Nomenclature Web Site", it is recommended to use a version 4 (or higher) browser, like Netscape Navigator 4.x or Microsoft Internet Explorer 4.x/5.x. Since style sheets are rarely used, also Netscape Navigator 3 can be used.

The screen resolution should be 800 x 600 pixels (or higher) showing 256 colors (or more).

A requirement for using the functions in the bottom Navigation Bar is that JavaScript must be enabled in your browser!