I took an Electronic Records Management course last semester, and part of my personal research was to take a look at the RM policies of government agencies. My research was in no way comprehensive, but one of the best resources I found was the Georia Secretary of State's Records Management Services website.

They've posted complete RM retention schedules, information on legislation that guides RM policies, and standards and guides for microforms and imaging systems, among other things. The information on the websites covers both state and local level RM and is worth a look, if you are into that kind of thing.