The Rules of Professional Conduct were promulgated by the Connecticut Superior Court in 1986 and have the force of law with respect to attorneys. The rules, along with official commentary, can be found in the Connecticut Practice Book:
Grievance decisions are issued by the Statewide Bar Counsel in response to complaints about specific attorneys.
The Connecticut Bar Association Committee on Professional Ethics issues advisory opinions on specific ethical situations facing practicing attorneys. It will issue an informal opinion when a request is made by an individual attorney, but if the committee feels that the matter is of significant interest to the bar, it will issue a formal opinion on the matter.