One aspect of professionalism is to become part of a professional organization. In addictions nursing there are several different professional organizations in which to become certified and recognized for your knowledge. Please check with your workplace concerning which credentials they prefer to recognize your expertise. For example, the state of OHIO recognizes the Certified Addiction Registered Nurse (CARN), Certified Addictions Registered Nurse- Advanced Practice (CARN-AP) and the Certified Addiction Specialist (CAS) certifications.
The American Nurses Certification Board (ANCB) offers a discount to IntNSA members in the USA and in Canada for certification or renewal.