Pacific Southwest Region
Our publications fall into a few broad categories: administrative, general, and research publications. We also publish or use software. Our Directives are part of the Forest Service Manual and Forest Service Handbook.
Here is a link to their publications page: http://www.fs.fed.us/r5/publications/
Good reading, and lots of info.
I have not checked the other forest pages for the same info, but I am betting that they all have the same info.