The Federal Housing Finance Agency last week published a final regulation augmenting the ethical standards of its professional personnel, banning certain financial interests, including GSE securities, and limiting certain outside employment and business activities. The new final rule, effective Aug. 27, supplements the Standards of Ethical Conduct for Employees of the Executive Branch of the U.S. Office of Government Ethics. “The final regulation, which affects only FHFA employees, is necessary to ensure the public trust in FHFA…