A more thorough explanation:

A disciplinary rule is a mandatory regulation that outlines the minimum level of professional conduct that a professional must maintain to avoid facing disciplinary action. These rules are often capitalized and abbreviated as DR. For instance, lawyers must adhere to the disciplinary rules outlined in the Model Code of Professional Responsibility.

Disciplinary rules are put in place to ensure that professionals maintain high ethical standards and provide quality services to their clients. Failure to comply with these rules can result in disciplinary action, which may include suspension or revocation of a professional's license.

For example, a doctor who violates the disciplinary rule of patient confidentiality by sharing a patient's medical information without their consent may face disciplinary action. Similarly, a lawyer who fails to represent their client diligently and competently may also face disciplinary action.

These examples illustrate how disciplinary rules are designed to protect the public and maintain the integrity of a profession by holding professionals accountable for their actions.