The topic of C coding standards has come up from time to time. I ran across the following web site today:

http://www.qualitygeneration.com/CodeStd.html

Of interest to some, might be the site's online coding standard generator. Answer a few questions and based on your preferences, it will build the framework for what a typical coding standard document would contain (for free). When I/they say "coding standard", it's more in the context of style as opposed to standards that attempt to enhance safety (e.g., MISRA C guidelines).