[oe] List of distro policies?

[Carlos Rafael Giani]

Hello,

is there a list of settings, values, policies that are distro specific? 
I haven't found anything like that so far, and the only source of 
information about what is allowed and what isn't has been this mailing 
list and the IRC channel. For example, I am suspecting that 
MULTI_PROVIDER_WHITELIST is a distro policy, but I cannot find that 
documented anywhere.

thanks,
  Carlos