- MACE is a 60-question, two-hour exam with 50 scored items across three domains.
- Credentia administers MACE; states, not NCSBN, control eligibility and registry action.
- Medication Administration, Observation and Reporting is worth 60% of scored content.
- Delivery is live-proctored online, and no study aids are permitted during testing.
What Is MACE, Exactly?
MACE stands for the Medication Aide Certification Examination - a standardized test that measures whether a nursing assistant or aide has the knowledge to safely administer medications under state-defined limits. It is not a general nursing exam and it is not interchangeable with CNA certification. Instead, MACE sits on top of existing CNA credentials in most states, verifying a narrower, medication-focused skill set before a state authority grants a medication aide designation or adds a notation to a nursing assistant registry.
If you're researching this topic from scratch, you may also want to see how this exam compares in name only to other uses of the acronym - our companion piece What Is A MACE? and the plain-language breakdown in MACE Meaning clarify that confusion quickly. For the credential itself, MACE Certification and What Is MACE Certification? go deeper into the credentialing process than this overview.
Who Administers MACE and Who Sets Eligibility
The exam is currently administered by Credentia. This matters practically because Credentia controls the testing platform, scheduling, proctoring rules, and score reporting. It's worth noting explicitly: NCSBN states that it no longer develops or owns MACE content, so any older references you find online tying MACE to NCSBN describe a past arrangement, not the current one.
Eligibility, however, is not decided by Credentia. Each state's nursing or health authority determines who may sit for the exam, what training must precede it, and what happens to your registry listing or license after you pass. This split - testing vendor versus regulatory authority - explains why two candidates in different states can have very different paths to the same exam.
Key Takeaway
Don't assume your state's rules match a friend's experience in another state. Confirm your specific program's prerequisites with your state nursing board before registering through Credentia.
Exam Format: Questions, Time, and Delivery
MACE is an English-language exam containing 60 multiple-choice questions, and candidates are given two hours to complete it. Here's a detail many candidates miss: the official content outline allocates only 50 of those questions as scored items across the three domains. The remaining questions function as unscored pretest items mixed in without being labeled, which is standard practice for large-scale certification exams - you won't know which ones don't count, so every question deserves your full attention.
The exam is delivered through live online proctoring, meaning a real proctor monitors your session remotely rather than you testing unmonitored or in a fixed test center. Results are reported through the Credentia platform. One rule that trips up unprepared candidates: study aids of any kind - notes, phone, secondary devices, printed reference sheets - are prohibited during the test session. Treat your test-day environment the way you'd treat any monitored licensure exam.
For a deeper walk-through of what individual questions look like and how they're phrased, see Best MACE Practice Questions 2026: What to Expect on the Exam. If you're still deciding whether the format itself will be a challenge for you, How Hard Is the MACE Exam? Complete Difficulty Guide 2026 breaks down the format against candidate feedback.
The Three MACE Domains
The current national content outline organizes scored content into three domains. Understanding not just the topics but the weighting is the single most useful piece of strategic information a candidate can have, because it tells you where to spend limited study hours.
Domain 1: Authorized Duties (16%)
Covers what a medication aide is legally permitted to do, the boundaries of the role, and when a task must be escalated to a licensed nurse.
- Scope-of-practice boundaries for medication aides
- Situations requiring nurse notification before acting
- Delegation and supervision expectations
Domain 2: Medication Administration, Observation and Reporting (60%)
This is the dominant domain by far, covering the majority of scored questions. It centers on the mechanics of giving medications safely and recognizing/reporting patient responses.
- The "rights" of medication administration and verification steps
- Routes of administration and technique-specific precautions
- Recognizing adverse reactions, side effects, and when to withhold a dose
- Documentation and reporting protocols
Domain 3: Medication Concepts and Measurements (24%)
Focuses on the underlying pharmacology and math skills needed to administer medications correctly.
- Basic drug classifications and their intended effects
- Dosage calculations and measurement conversions
- Interpreting medication orders and labels accurately
Because Domain 2 alone carries 60% of scored items, it deserves the majority of your review time - but not all of it, since Domains 1 and 3 combined still make up nearly half the exam. For domain-by-domain study guidance, MACE Exam Domains 2026: Complete Guide to All 3 Content Areas is a useful companion resource, and each domain has its own dedicated deep dive: Domain 1: Authorized Duties, Domain 2: Medication Administration, Observation and Reporting, and Domain 3: Medication Concepts and Measurements.
State-Specific Requirements
Because states control eligibility, training prerequisites vary meaningfully. Two examples illustrate the range:
- Colorado requires completion of an approved Medication Aide Training Program plus active CNA status before a candidate can sit for MACE.
- Utah's approved pathway requires 100 total training hours, split into 60 didactic (classroom) hours and 40 practical (hands-on) hours.
These numbers aren't interchangeable across states, and assuming your state mirrors either example could cost you time or a rejected application. Certification and renewal are administered by the applicable state authority, not by Credentia, so renewal cycles, continuing education, and reinstatement rules also depend on where you're licensed. Before you register, verify your program's approved-training list, your CNA status requirements, and your state's renewal cadence directly with your board.
Who Takes MACE and Why
Candidates pursuing MACE are typically certified nursing assistants seeking an expanded scope of practice in settings like skilled nursing facilities, assisted living communities, and some long-term care organizations where medication aides are permitted by state regulation to administer routine medications under a nurse's oversight. Passing MACE doesn't replace nursing licensure - it authorizes a specific, limited set of medication-related tasks defined by your state.
For aides evaluating whether the credential changes their employability or role, MACE Jobs outlines the kinds of positions that request or prefer this certification, and MACE Salary Guide 2026: Complete Earnings Analysis covers compensation trends. If you're still weighing whether the training hours and exam fee are worth the investment, Is the MACE Certification Worth It? Complete ROI Analysis 2026 lays out the tradeoffs without inflating expectations.
Building a MACE-Specific Prep Plan
Generic study techniques only help if they're mapped to MACE's actual weighting. Since Domain 2 makes up 60% of scored questions, it should anchor the middle of your prep schedule, not be squeezed in alongside everything else.
Foundations and Domain 1
- Review scope-of-practice rules and authorized-duties boundaries
- Take a diagnostic practice set on the main practice test hub to identify weak areas
Domain 2 Deep Focus
- Drill the "rights" of administration, routes, and adverse-reaction recognition
- Practice documentation and reporting scenarios repeatedly, since this domain carries the most weight
Domain 3 and Calculations
- Practice dosage math and label-reading until conversions become automatic
- Revisit drug classification basics
Full-Length Simulation
- Take timed 60-question practice runs mirroring the two-hour limit
- Review a step-by-step readiness checklist in MACE Study Guide 2026: How to Pass on Your First Attempt
Since live online proctoring prohibits study aids during the actual test, use your practice weeks to build recall you can rely on without notes. Simulating closed-book conditions early on our practice test platform removes the surprise factor on exam day.
MACE at a Glance
| Feature | Detail |
|---|---|
| Administered by | Credentia (content no longer owned by NCSBN) |
| Total questions | 60 multiple-choice |
| Scored questions | 50, across 3 domains |
| Time allowed | 2 hours |
| Delivery method | Live online proctoring |
| Study aids allowed | None permitted during testing |
| Eligibility set by | State nursing/health authority |
| Top-weighted domain | Medication Administration, Observation and Reporting (60%) |
For a broader look at how difficulty is discussed among recent test-takers, and what actually seems to trip candidates up domain-by-domain, see How Hard Is the MACE Exam? Complete Difficulty Guide 2026. If you're trying to gauge overall outcomes before committing to a training program, MACE Pass Rate 2026: What the Data Shows is the more appropriate resource than relying on anecdotal forum posts.
Frequently Asked Questions
The exam content and format are standardized through Credentia, but eligibility, training-hour requirements, and renewal rules are set individually by each state's nursing or health authority - so requirements differ depending on where you live.
The exam presents 60 multiple-choice questions, but the official content outline allocates 50 as scored items across the three domains. The rest are unscored and not identified to test-takers.
No. Study aids of any kind are prohibited during the MACE exam, which is delivered under live online proctoring to enforce that restriction.
Requirements vary by state. Colorado, for example, requires active CNA status plus completion of an approved Medication Aide Training Program. Always confirm your specific state's prerequisites before registering.
Medication Administration, Observation and Reporting accounts for 60% of scored questions, making it the highest-priority domain, though Authorized Duties (16%) and Medication Concepts and Measurements (24%) still require solid preparation.