Can you provide an example?
Don't sell to a company you think may sell to Iran or North Korea if things look fishy
Don't try to make fun of people who are different in any way (religion, orientation, background, believe, look, etc)
Don't try to cover up financial or legal mistakes
Don't forgive someone because they are friends of boss, don't try to forgive a vendor or customer because they have forgiven you in the past
If someone related to your boss or your coworker is doing business as customer or vendor, go through legal department for review
Don't bribe government officials
Don't accept gifts above a "small amount" if you suspect they gift because you have the decision making power
Don't have sex with coworkers you manage directly or indirectly
Casting couch is not allowed.
Don't retaliate if someone piss you off, let your management deal with it
Report your boss if he or she is doing something fishy
Be nice to coworkers.
It is not racism or discrimination if someone is being a jerk to everyone, don't abuse the reporting mechanism.
That's about it. Most of the time I screw up the questions later because I report too many things that are actually allowed in the guidelines (i.e. sleeping with someone else's boss or direct report, accepting free lunches if not expensive, gifting gifts that are small amounts to non gov employees).