Actuarial Guidance Note means professional guidance issued under Article 64 to guide members as to professional best practice. Compliance with an Actuarial Guidance Note is not mandatory but non-compliance is only justified in exceptional circumstances where there is good reason for such non-compliance. An Actuarial Guidance Note may be issued to clarify a Professional Standard, a law, or a regulation. In this case, the Actuarial Guidance Note is intended to illustrate the application of the principles underlying the Professional Standard, law or regulation, and should not be read in any manner which would sanction departure from the Professional Standard, law or regulation. Non-compliance without good reason may lead to disciplinary proceedings under Articles 66 and 67.