Citing Legal Ethics Materials: There some rules in the Bluebook which are specific to the citation of legal ethics materials:
Rule 12.9.5 covers citation of the ABA Code of Professional Responsibility and Opinions on Ethics. This rule is written for ABA codes and ethics opinions but can be used as a model for similar state materials (see T6 for abbreviations of institutional authors in citations), e.g.,
Rule 16.6.7 covers Proceedings, Regular Publications by Institutes, and ABA Section Reports.