The Big Question for the NY Fed about Goldman Sachs

Simon Johnson asks:

At the height of the financial panic last fall Goldman Sachs became a bank holding company, which enabled it to borrow directly from the Federal Reserve. It also became subject to supervision by the Federal Reserve Board (with the NY Fed on point) – hence the brouhaha over Steven Friedman’s shareholdings.

Goldman is also currently engaged in private equity investments in nonfinancial firms around the world, as seen for example in its recent deal with Geely Automotive Holdings in China (People’s Daily; CNBC). US banks or bank holding companies would not generally be allowed to undertake such transactions - in fact, it has annoyed bankers who have asked me to take this up.

Would someone from the NY Fed kindly explain the precise nature of the waiver that has been granted to Goldman so that it can operate in this fashion? If this is temporary, is it envisaged that Goldman will cease being a bank holding company, or that it will divest itself shortly of activities not usually allowed (and with good reason) by banks? Or will all bank holding companies be allowed to expand on the same basis. (The relevant rules appear to be here in general and here specifically; do tell me what I am missing.)

I have submitted the questions to both Goldman Sachs and the New York Fed.