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CADC study guide: IC&RC ADC domains, old and new

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This CADC study guide walks through each domain of the current IC&RC Alcohol and Drug Counselor outline, in the order of the candidate guide, with the share of scored questions each one carries. Evidence-Based Treatment, Counseling, and Referral is the largest at 30%. Before anything else, check which outline your other prep material was written for: some of it may still teach the 2015 version.

On this page 10 sections
  1. Old outline or new: check your materials first7
  2. 25% of the exam: Scientific Principles of Substance Use and Co-Occurring Disorders
  3. 20% of the exam: Evidence-Based Screening and Assessment
  4. 30% of the exam: Evidence-Based Treatment, Counseling, and Referral
  5. 25% of the exam: Professional, Ethical, and Legal Responsibilities
  6. The 12 core functions and where they sit today12
  7. Test the four domains: 12 items12
  8. More on the ADC exam4
  9. Sources7
  10. Planning your ADC study3

Old outline or new: check your materials first

The current outline comes from the candidate guide shown in the table below, and the exam built on it was first given in 2023, according to an IC&RC notice posted by New Hampshire's licensing office. The exam before it followed the 2015 job analysis, with different domain names and weights (see the table below).

The content did not vanish; it was regrouped. The most visible change: the science of substance use and co-occurring disorders now has its own domain, where the 2015 version had scattered it. A book or question bank organized around "engagement" or a separate counseling domain predates the update.

FactDetailSource
Content outline in forceADC Candidate Guide effective November 2022; the updated exam was first given on March 1, 2023. The launch had been planned for February 1, 2023 and was moved back four weeks.Alcohol and Drug Counselor (ADC) Candidate Guide [1][2]
Previous outlineThe outline used from February 16, 2015 until the March 1, 2023 update: Screening, Assessment, and Engagement 23%; Treatment Planning, Collaboration, and Referral 27%; Counseling 28%; Professional and Ethical Responsibilities 22%. The 2023 exam regrouped this content into four new domains and added a separate domain for the science of substance use and co-occurring disorders. The Advanced Alcohol & Drug Counselor (AADC) exam has its own blueprint, updated for tests from March 16, 2026; that change does not apply to the ADC.Updated ADC job analysis and exam outline [2][3][4]
Upcoming changeNone announced. IC&RC posts exam updates with its candidate guides (read Nov 11, 2026).IC&RC: Exam prep and study materials [5]

Weight of each current ADC domain within the scored part of the exam.

0share of 125 scored items100%

DomainShareItems of 125
Scientific 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
Evidence-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
Evidence-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
Professional, 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 [1]; IC&RC notice of the updated ADC and PS exams (March 1, 2023) [2]. Read on Nov 11, 2026.

25% of the exam: Scientific Principles of Substance Use and Co-Occurring Disorders

This domain asks what substances do and why use becomes a disorder. Expect the disease model and the reward pathway, tolerance and craving, risk factors such as early trauma or family history, and the way use progresses. The longest part of the outline is drug classes: how each acts, what intoxication and overdose look like, how withdrawal unfolds, and the physical, psychological and social harm. It closes with co-occurring mental health and medical conditions.

Study by class rather than by street name. For depressants, stimulants, opioids, cannabis, hallucinogens and nicotine, know one line each for intoxication, overdose and withdrawal, and which medications act on the same receptors.

Three words that are not synonyms

Tolerance means needing more of a drug for the same effect. Physical dependence means the body reacts when the drug stops. Addiction, a substance use disorder, is a pattern of loss of control and harm. A patient on long-term prescribed medication can show the first two without the third, and answer options that treat them as one thing are wrong.

20% of the exam: Evidence-Based Screening and Assessment

Here the questions follow the first contact with a client: interviewing skills, standard screening and assessment tools (the guide names the ASI, the ACE questionnaire and the SASSI), drug and alcohol test methods and how to read their results, diagnostic criteria from the DSM, a full biopsychosocial history, the client's immediate and longer-term needs, and the level of care that placement criteria point to.

Expect stems built around priority: the first step, the most important task. Safety and urgent medical needs outrank paperwork.

A screen is a starting point

A positive screening tool shows that a fuller assessment is needed; it is not a diagnosis. Collateral contacts such as family or prior providers require the client's consent.

30% of the exam: Evidence-Based Treatment, Counseling, and Referral

This heaviest domain covers the most ground, from rapport, communication and learning styles through crisis response, case management and referral, then to specific populations, teamwork with other providers and family, the link between trauma and substance use, ambivalence, treatment planning, group counseling, discharge planning, feedback techniques and ending the counseling relationship. Medications, holistic approaches and support groups appear together as multiple pathways of recovery.

Treatment planning items reward precision. A goal states the outcome the client wants; an objective is a measurable, dated step toward it; an intervention is what the counselor does. Options that blur the three deserve suspicion.

Pathways, not substitutes

Medications for opioid or alcohol use disorder count as a recovery pathway in the outline, not as trading one drug for another. Mutual-help groups support counseling and follow it after discharge; they do not replace a treatment plan.

The 12 core functions and where they sit today

The 12 core functions are an older description of an addiction counselor's job, each broken into global criteria. They are not the outline of the current written exam. The material maps onto the 2023 domains like this:

  1. Screening: Screening and assessment
  2. Intake: Screening and assessment, with consent forms under Ethics and law
  3. Orientation: client rights and program rules, under Ethics and law
  4. Assessment: Screening and assessment
  5. Treatment planning: Treatment and referral
  6. Counseling, individual and group: Treatment and referral
  7. Case management: Treatment and referral
  8. Crisis intervention: Treatment and referral
  9. Client education: Treatment and referral, drawing on the drug science in Scientific principles
  10. Referral: Treatment and referral
  11. Reports and record keeping: documentation, under Ethics and law
  12. Consultation with other professionals: teamwork in Treatment and referral, supervision in Ethics and law

The mapping is ours, made by matching each function to the outline lines in the candidate guide. The one area with no core function behind it is the science domain, which is the main reason study plans built only on the 12 functions fall short today.

Test the four domains: 12 items

12 questions 0 answered · 0 match the key

Scientific principles · 25%Q1 of 12

The MOST common cause of MDMA-related death is

Mark a letter. The key, plus a line on every option, opens at once.

  1. dangerously high body temperature
    Most MDMA deaths involve hyperthermia: the drug raises body heat, and hot, crowded venues and hours of dancing push it higher, leading to muscle breakdown and organ failure.
  2. seizures during MDMA withdrawal
    Deaths occur during intoxication, not withdrawal; stopping MDMA brings low mood and fatigue rather than dangerous seizures.
  3. an allergic reaction to pill fillers
    Fillers and adulterants carry their own risks, but allergic reactions are not the leading cause of MDMA-related death.
  4. opioid-like respiratory depression
    MDMA is a stimulant with empathogenic effects; it does not suppress breathing the way opioids do.
Scientific principles · 25%Q2 of 12

Which statement about cannabis and driving is MOST accurate?

  1. it makes users safer, more cautious drivers
    Some impaired drivers slow down, but that does not offset slower reactions and poorer attention, and crash risk rises after use.
  2. impairment occurs only with smoked, not edible, cannabis
    Edibles also impair driving; their effect starts later and lasts longer, which can lead people to drive while still affected.
  3. THC slows reaction time, and alcohol adds to it
    THC impairs reaction time, attention and lane keeping, and adding alcohol produces more impairment than either drug alone.
  4. regular, tolerant users cannot be impaired
    Tolerance blunts some effects in daily users, yet testing still finds impaired performance, so no user is immune.
Scientific principles · 25%Q3 of 12

Varenicline helps people stop smoking MAINLY because it

  1. makes cigarettes taste bad, as disulfiram does with alcohol
    Varenicline is not an aversive drug, and disulfiram works through a toxic reaction to alcohol, not through taste.
  2. partly activates nicotine receptors, blunting reward
    Varenicline is a partial agonist at nicotinic receptors: it eases craving and withdrawal while blocking much of the reward from a cigarette.
  3. works only by treating underlying depression
    Varenicline is not an antidepressant; its effect comes from acting on nicotine receptors in the brain's reward system.
  4. delivers nicotine through the skin at a steady rate
    That describes a nicotine patch; varenicline is a tablet that contains no nicotine.
Screening and assessment · 20%Q4 of 12

In a biopsychosocial assessment, a client's hepatitis C status, liver disease, and history of withdrawal seizures belong to which area?

  1. Psychological
    The psychological area covers mood, thinking, trauma and mental health history, not liver disease or seizures.
  2. Social
    The social area covers family, housing, work and legal matters rather than medical conditions.
  3. Spiritual
    The spiritual area covers meaning, faith and values; physical health findings are recorded elsewhere.
  4. Biological
    Medical history, infectious disease status and past withdrawal seizures all describe the body, so they belong in the biological part of the assessment.
Screening and assessment · 20%Q5 of 12

Under the Risk-Need-Responsivity model, a justice-involved client assessed as LOW risk of reoffending should generally receive

  1. intensive services
    Intensive services are meant for high-risk clients; giving them to low-risk clients wastes resources and can worsen outcomes.
  2. the same services as high-risk clients
    The model rejects one-size-fits-all programming; service intensity differs by assessed risk.
  3. less intensive services
    The risk principle matches intensity to risk: low-risk clients do best with lighter services, and intensive programs can raise their reoffending by mixing them with higher-risk peers.
  4. services only after reoffending
    Low risk still calls for some service matched to need; waiting for a new offense ignores the assessment.
Screening and assessment · 20%Q6 of 12

A client reports smoking crack cocaine once, five days ago. A standard urine immunoassay is negative for cocaine metabolites. The MOST likely explanation is that

  1. the client is falsely reporting use
    The report and the result do not conflict: use five days earlier can leave no detectable metabolite, so the result is no reason to doubt the client.
  2. the metabolite fell below the cutoff
    Cocaine's main urine metabolite usually stays above the screening cutoff for only about two to four days after occasional use, so a negative five days later is expected.
  3. the test failed and must be repeated
    A negative result five days after a single reported use fits the normal detection window, so nothing suggests the test failed.
  4. a dilute specimen masked the metabolite
    Dilution can lower results, but nothing points to it here, and the time since use already explains the negative.
Treatment and referral · 30%Q7 of 12

A pregnant client with opioid use disorder says she fears her baby will be taken if she admits using. The counselor should

  1. advise her to detox right away
    Withdrawal during pregnancy carries a high relapse risk, and relapse is what endangers the fetus, so medication is preferred over detox.
  2. report her use to CPS immediately
    An immediate report is not the clinical response this disclosure calls for; it would confirm her fear and push her away from the prenatal care and treatment that protect the baby.
  3. link her to prenatal care and MOUD
    Methadone or buprenorphine with prenatal care is the standard of care for opioid use disorder in pregnancy and lowers risks to mother and baby; offering it also builds the trust she needs to stay engaged.
  4. refer her elsewhere until after birth
    Delaying care until after birth leaves her and the baby untreated during the period of highest risk.
Treatment and referral · 30%Q8 of 12

Contingency management programs can appropriately reinforce

  1. verifiable goals such as session attendance
    Contingency management works when the target can be checked objectively, so attendance, negative tests or completed tasks are rewarded right after they are confirmed.
  2. a client's promise to stay abstinent
    A promise is not a completed behavior; reinforcement follows what the client actually did, once it is verified.
  3. self-reported abstinence without verification
    Rewarding unverified reports rewards the report rather than the behavior and invites false claims.
  4. attitude changes noted by the counselor
    A counselor's impression of a better attitude is subjective, so rewards for it are inconsistent and shape no specific behavior.
Ethics and law · 25%Q9 of 12

A Part 2 program joins a health information exchange (HIE). Administrators propose signing a QSOA so the HIE can share patient data with every participating hospital for care coordination. This is insufficient because

  1. a QSOA covers only services to the program
    A QSOA lets a Part 2 program share records with an organization that provides services to the program itself; passing records on to hospitals for their own care of the patient needs the patient's consent.
  2. federally assisted programs cannot join an HIE
    Part 2 programs can take part in an HIE; the question is what legal basis covers each disclosure, not whether joining is allowed.
  3. the HIE must first obtain a court order
    A court order is one route for certain disclosures, but routine care coordination through an HIE rests on patient consent.
  4. electronic records cannot separate Part 2 data
    Systems can segment or tag Part 2 data; technical difficulty is not why a QSOA falls short here.
Ethics and law · 25%Q10 of 12

Residential staff propose withholding meals from clients who break program rules. This practice is

  1. a violation only if the client is a minor
    Withholding meals violates the rights of adult clients too; basic rights such as adequate food do not depend on age.
  2. a violation of basic client rights
    Food is a basic need, and withholding meals as punishment is a rights violation that no handbook or admission agreement can make acceptable.
  3. an acceptable behavioral consequence
    Program consequences must be therapeutic and humane; denying food is punitive deprivation, not a behavioral consequence.
  4. allowed if written in the handbook
    Putting a punishment in writing does not make it lawful or ethical; program rules cannot override basic client rights.
Ethics and law · 25%Q11 of 12

A Part 2 program's intake packet asks clients to waive their right to file privacy complaints with HHS before they can be admitted. Under the 2024 Part 2 rule, this requirement is

  1. prohibited only for Medicare or Medicaid patients
    The bar protects every patient of a Part 2 program; it does not depend on who pays for treatment.
  2. allowed if the program has its own process
    An internal grievance process is good practice, yet it does not replace the patient's right to complain to HHS.
  3. allowed if the client signs it voluntarily
    A signature given to get admitted is not a free choice, and the rule bars the requirement whether or not the client signs.
  4. prohibited as a condition of treatment
    The 2024 Part 2 rule lets patients file complaints with HHS and bars programs from requiring a waiver of that right as a condition of treatment, payment, enrollment or eligibility.
Treatment and referral · 30%Q12 of 12

A client in an intensive outpatient program is reviewed for a possible step-up in level of care. Which finding justifies moving to a more intensive level?

  1. One positive drug screen after the first week
    A single early positive screen calls for adjusting the plan; it is the pattern of continued use that justifies a step-up.
  2. A request for more individual therapy sessions
    A wish for more sessions can be met within the current level and says nothing about whether the setting controls use.
  3. Resistance voiced toward the current counselor
    Friction with a counselor is handled by working on the relationship or reassigning, not by changing the level of care.
  4. Ongoing use despite full adherence to the plan
    When a client follows the plan yet keeps using, the current intensity is not enough to control use, which is the core reason to move to a more structured level of care.

More on the ADC exam

Sources

  1. [1]IC&RC: Alcohol and Drug Counselor (ADC) Candidate Guide, effective November 2022 (PDF) internationalcredentialing.org, consulted Nov 11, 2026
  2. [2]IC&RC notice of the updated ADC and PS exams (March 1, 2023), posted by the New Hampshire OPLC (PDF, archived copy) web.archive.org, consulted Nov 11, 2026
  3. [3]IC&RC: Updated ADC job analysis and exam outline, first given February 16, 2015 (PDF, copy hosted by a member board) global-uploads.webflow.com, consulted Nov 11, 2026
  4. [4]IC&RC: AADC exam blueprint and content domain changes, for testing from March 16, 2026 (PDF) internationalcredentialing.org, consulted Nov 11, 2026
  5. [5]IC&RC: Exam prep and study materials internationalcredentialing.org, consulted Nov 11, 2026
  6. [6]Florida Certification Board: Fees flcertificationboard.org, consulted Nov 11, 2026
  7. [7]IC&RC: Scores and verification internationalcredentialing.org, consulted Nov 11, 2026

Planning your ADC study

Are the 12 core functions still tested on the IC&RC ADC?

Not as a list. The written exam is built on the domains of the current candidate guide, and the functions live on inside them, as the map above shows.

Where should most of my study hours go?

To Treatment and referral, which carries 30% of the scored questions, and then to whichever domain your practice results show as weakest. The science domain deserves extra time if your training focused on counseling skills.

Can I study from a book written for the 2015 outline?

For background, yes: the 2023 update regrouped the content rather than replacing it. As a plan, no: its domains and weights no longer match, and it gives the drug science far less room than the current exam does.

Facts in this part come from [1][2]