The Office of Currency Control has a website to explore.
National bank subsidiaries monitored by OCC tend to be mortgage companies. The link is to the long list of matching trade names to the correct national bank, and in which state the subsidiary operates.
The Securities Exchange Commission has a listing of proposed rule changes by the OCC in 2008 at the link.
A generic regulation search engine is at this link.
OCC Watch is not current, but other sites will be researched.