The Misrepresentation standard as it involves plagiarism is fairly straightforward, but there are a few sticking points that I was getting hung up on. Usually, I would just err on the side of caution, but knowing exactly where the lines are drawn is what makes the Ethical and Professional standards section so difficult. Here are two bits that was having a bit of trouble with.
Quoting a LIBOR or the latest consumer price index figures released whatever government department-bureau-place publishes them is perfectly acceptable. Directly quoting a person that works for that department, like Janet Yellen, or any FED Chairperson without citing them as the source is not allowed.
Within a firm: When using charts and graphs developed at the firm, they must be must be cited as property of the firm. Although it would be nice of you to mention the colleague responsible for developing the fancypants graphs in your report, it isn't necessary.
Obviously, there is a lot more to the standard than what I've included here, but these are the sorts of details that I stumbled over a few times. If I made a mistake, or you just want to say "Cheers!" please leave a comment.