CADC certification, like the CAC, the CASAC and the other ADC-level titles on the consortium's member list, rests on one written test: the IC&RC Alcohol and Drug Counselor (ADC) exam. The consortium writes and scores it; your board approves you to sit it, then grants the credential under its own name and handles renewal. The exam is 150 questions, scored on a scale where 500 passes.
International Certification & Reciprocity Consortium (IC&RC). IC&RC writes the exam and sets minimum standards; the credential itself is issued by an IC&RC member board, and some state boards use the exam for their own licenses.
A state or regional credential issued by your member board (CADC, CAC, LADC and other titles), with reciprocity at the IC&RC ADC level. The title depends on the board: for example CAC in Florida and Maine, CADC in Michigan, North Carolina and Pennsylvania, CASAC from New York's Office of Addiction Services and Supports (OASAS), and CSAC in Hawaii.
Alcohol and Drug Counselor (ADC) Candidate Guide [2]
Passing score
A scaled score of 500 on a 200–800 scale. IC&RC reports all of its exams on this scale; 500 is a converted cut, not a share of questions answered correctly.
IC&RC's other credentials: Advanced Alcohol & Drug Counselor (AADC), Clinical Supervisor (CS), Prevention Specialist (PS), Certified Criminal Justice Addictions Professional (CCJP) and three peer recovery levels (PR-A, PR, PR-S). NAADAC's NCAC credentials come from a different organization and use a different exam.
ADC names both the exam and the credential level the consortium defines. Nobody receives a bare "ADC" title from it. What you hold afterward is your board's own title, recognized at the IC&RC ADC level for reciprocity.
That is why searches for CADC certification lead to state boards rather than to the consortium. The board sets its own application, may add hours or an oral exam, and prints its own letters on the certificate. Among the six boards in our fee table the result is a CAC or a CADC; New York calls it a CASAC and Hawaii a CSAC. The field page shows how the same letters can point to different exams, so confirm the exam your board names before you start studying.
Minimum requirements, by degree level
The consortium sets a floor, and every member board starts from it. It starts with a high school diploma, then adds counseling-specific education in the exam domains with part of it in ethics, supervised work experience in substance use counseling, a passing exam score and a signed code of ethics. The more formal education you have, the fewer work and supervision hours the floor asks for; the table gives each step.
You apply in the jurisdiction where you live or work for most of your time. Boards may raise any of these numbers, so treat the table as the least you will need, not the whole list.
Fact
Detail
Source
Who can sit
IC&RC's minimum: a high school diploma, 300 hours of education in the ADC domains (6 of them in ethics), 2,000 to 6,000 hours of supervised work experience depending on your degree, a passing score on the ADC exam and a signed code of ethics. Work experience is 6,000 hours with a high school diploma, 5,000 with an associate degree, 4,000 with a bachelor's and 2,000 with a master's; supervision is 300, 250, 200 or 100 hours, with at least 10 hours in each domain. You must live or work at least 51% of the time in the board's jurisdiction. Your board may require more.
The scored questions split into four domains. Evidence-Based Treatment, Counseling, and Referral is the largest at 30%; the science of substance use, screening and assessment, and professional ethics and law make up the rest. These domains date from the 2023 update, and prep written for the earlier outline groups the material differently.
The ADC study guide takes them one by one, with traps and worked questions.
Weight of each domain, per the candidate guide effective November 2022.
1Scientific Principles of Substance Use and Co-Occurring Disorders. Recognize how addiction affects the brain (e.g., disease model, reward pathways, tolerance, and cravings); identify risk factors for developing substance use disorders; identify behavior, patterns, and progressive stages of substance use disorders; differentiate among common substances of abuse and their characteristics (pharmacology, intoxication and overdose, withdrawal, physiological, psychological, and social effects); identify signs and symptoms of co-occurring mental health and medical conditions.
25%
≈31
2Evidence-Based Screening and Assessment. Utilize established interviewing techniques; utilize established screening and assessment methods and instruments (e.g., ASI, ACE, SASSI); identify methods and interpret results from drug and alcohol testing; utilize established diagnostic criteria for evaluating substance use (i.e., DSM); assemble a comprehensive client biopsychosocial history; determine the course of action to meet the individual's immediate and ongoing needs; determine level of care based on placement criteria.
20%
≈25
3Evidence-Based Treatment, Counseling, and Referral. Communication and learning styles; building rapport; reviewing patterns and methods of use; responding to emergency/crisis events; referrals and case management; concerns of specific populations; collaboration with a multidisciplinary team and client supports; the relationship between substance use and trauma; ambivalence or resistance to change; developing and updating a treatment plan; available resources; group counseling; discharge planning; multiple pathways of recovery (e.g., MAT, holistic health, support groups); feedback techniques; terminating the counseling process.
30%
≈38
4Professional, Ethical, and Legal Responsibilities. Professional boundaries and self-awareness (dual relationships, self-disclosure); multicultural perspectives; issues outside the practitioner's scope of practice; documentation (record keeping, storage); confidentiality and privacy law; conflicts of interest; informed consent; supervision and consultation; the grievance process; diversity, inclusion, and equity in care; client/patient rights.
25%
≈31
Weights from Alcohol and Drug Counselor (ADC) Candidate Guide [2]; IC&RC notice of the updated ADC and PS exams (March 1, 2023) [7]. Read on Nov 11, 2026.
Keeping the credential and taking it with you
Renewal runs on your board's cycle. The consortium's minimum is 40 CE hours every 2 years; fees, required topics and any extra hours are the board's call.
Moving is where the IC&RC link pays off. Per the consortium's reciprocity page, a credential held at the reciprocal level can transfer to another member board that offers the same level, though the receiving board may add its own conditions. You request it through your current board, and a lapsed credential cannot be transferred. The member board list shows which boards offer the ADC level.
Not the AADC, not the NCAC
Two neighbors are easy to confuse with this exam.
The AADC is IC&RC's advanced counselor credential, with a separate exam and outline. Some boards use it for clinical or licensed titles, so a "CADC II" or an LADC is not always an ADC credential.
NAADAC's NCAC credentials come from a different organization, with their own exams, and do not move between boards through IC&RC reciprocity.
A client cannot remember how they got home after a night of heavy drinking, although friends say they were talking and walking normally. This BEST describes
Mark a letter. The key, plus a line on every option, opens at once.
passing out, from loss of consciousness
Passing out means the drinker was unconscious; the friends watched this client walk and talk, so consciousness was never lost.
Korsakoff syndrome, from thiamine deficiency
Korsakoff syndrome is a lasting amnestic disorder after long thiamine deficiency, not a one-night memory gap in someone who functions normally.
a blackout, from blocked memory formation
A blackout is a gap in memory while the person stays awake: a fast-rising blood alcohol level stops the hippocampus from storing new memories, which fits friends seeing normal talking and walking.
a withdrawal seizure with later confusion
Withdrawal seizures come hours to days after drinking stops, not during a night of heavy drinking, and witnesses would have seen a convulsion.
Ethics and law · 25%Q2 of 4
After disclosing information to medical personnel treating a client's overdose, what must a Part 2 program document?
The recipient and the nature of the emergency
After a medical-emergency disclosure, Part 2 requires the program to record who received the information and their affiliation, who disclosed it, the date and time, and the nature of the emergency.
A consent the client signs after they recover
The emergency exception exists because consent cannot be obtained in time; no consent signed afterward is needed to make the disclosure valid.
A family member's signed approval
Relatives cannot authorize disclosure of an adult client's records, and the emergency exception needs no third-party approval.
The hospital's discharge summary
The hospital's records are the hospital's own; Part 2 asks the program to document its disclosure, not to collect the treating facility's paperwork.
Screening and assessment · 20%Q3 of 4
A client in a diversion program denies use despite a positive urine immunoassay. Before any sanction, the counselor requests GC/MS confirmation. The MAIN reason for this step is that GC/MS
measures the client's level of impairment
No urine test, screen or confirmation, shows how impaired a person was; a urine result reflects past exposure, not present effect.
rules out cross-reacting substances
GC/MS identifies the exact compound by its chemical signature, so it shows whether the screen reacted to the drug itself or to a look-alike substance such as a medication.
gives faster, cheaper results than a screen
GC/MS is slower and costs more than a screening immunoassay, not faster or cheaper; programs accept that cost because accuracy matters before a sanction.
detects use over a longer window
A longer detection window comes from the specimen, such as hair, not from the lab method; the point of confirming urine is accuracy.
Treatment and referral · 30%Q4 of 4
A client stabilized on methadone moves to a new city when discharged from the program and relapses two days later. Which component was MOST likely missing from the discharge plan?
A list of 12-step meetings in the new city
Mutual-help meetings support recovery, but they cannot stand in for a daily medication, and their absence does not explain a relapse within two days.
A plan for long-term affordable housing
Stable housing matters for recovery, but the two-day timeline points to interrupted medication rather than the living situation.
A referral to a primary care doctor for a checkup
A routine checkup is useful follow-up, yet a primary care visit does not supply methadone, so it would not have prevented the break in dosing.
A confirmed new clinic for daily dosing
Methadone for opioid use disorder is dispensed only through opioid treatment programs, so a move without a confirmed slot at a new clinic leaves the client without doses; withdrawal starts within a day or two and drives the relapse.
Not quite. The IC&RC ADC is the exam and the credential level; CADC is a title that a board grants once you pass that exam and meet its other rules. Several boards use other letters, such as CAC or CASAC, for the same level.
Who do I apply to for the ADC exam?
To your board, not to the consortium. The board checks your education and hours, and only after it approves you can you book a seat; the registration page walks through the order.
What is the difference between a CADC I and a CADC II?
It depends on the board. In California and Georgia the higher Roman numerals still sit on the ADC exam, while in Massachusetts the CADC II is the advanced level and needs the AADC exam, per IC&RC's member board list.
Can a CADC follow me across state lines?
It can, if both boards are IC&RC members offering the credential at the reciprocal level. You apply through your current board, and the new one issues its own title, sometimes after extra requirements.