(a) This Part shall apply to all attorneys who are admitted to practice, reside in, commit acts in or who have offices in the Second Judicial Department, or who are admitted to practice by a court of another jurisdiction and who regularly practice within this department as counsel for governmental agencies or as house counsel to corporations or other entities, or otherwise. In addition, any attorney from another state, territory, district or foreign country admitted pro hac vice to participate in the trial or argument of a particular cause in any court in the Second Judicial Department, or who in any way participates in an action or proceeding therein, shall be subject to this Part. This Part serves as a supplement to, and should be read in conjunction with the Rules for Attorney Disciplinary Matters (Part 1240 of this Title). Where this Part is in conflict with those rules, this Part shall control.