- MACE stands for Medication Aide Certification Examination, currently administered by Credentia, not NCSBN.
- The exam has 60 multiple-choice questions with 50 scored items across three domains in two hours.
- Medication Administration, Observation and Reporting alone makes up 60% of scored content.
- State agencies, not Credentia, set eligibility rules like Colorado's active CNA requirement or Utah's 100 training hours.
What Is A MACE, Exactly?
MACE stands for Medication Aide Certification Examination. It's the standardized test that certified nursing assistants and other qualifying caregivers take to become authorized to administer medications in long-term care settings, assisted living facilities, and similar environments where a full nurse isn't always present. If you've been asking "what is a MACE" while researching a career move, the short answer is this: it's a credentialing exam, not a training program, not a job title, and not a license by itself.
The MACE tests whether a candidate has the knowledge to safely pass medications, recognize adverse reactions, document accurately, and stay within the legal boundaries of what a medication aide is allowed to do. It does not replace nursing judgment - it certifies a narrower, well-defined scope of practice. For a broader breakdown of the terminology, see our companion pieces on MACE meaning and what does MACE stand for.
Who Administers the MACE and Who Sets the Rules
This is where a lot of confusion starts. The National Council of State Boards of Nursing (NCSBN) has publicly stated that it no longer develops or owns MACE content. Today, the exam is administered by Credentia, a testing organization that also handles other healthcare credentialing exams. Credentia builds the content outline, delivers the test, and reports scores.
But Credentia doesn't decide who can sit for the exam or what happens after you pass. That authority belongs to your state's nursing or health department. States determine:
- Who is eligible to register for the MACE
- What training must be completed before testing
- Whether passing the exam results in a registry entry, a certificate, or a license endorsement
- Renewal cycles and continuing education requirements
This split - national test content, state-controlled eligibility and licensing - is one of the most important things to understand before you register. For a full walkthrough of how this affects you specifically, read our MACE Requirements guide.
Key Takeaway
Always confirm your state's specific medication aide program rules directly with your state board - Credentia administers the test, but your state controls certification status.
Exam Format: Questions, Time, and Delivery
The MACE is an English-language, multiple-choice exam. Here's what candidates actually sit down to take:
- 60 total questions on the exam form
- 50 scored questions distributed across the three content domains (the remaining questions are typically unscored pretest items, though the outline focuses on the 50 that count)
- Two hours of total testing time
- Live online proctoring - you take it remotely, but a live proctor watches via webcam
- No study aids permitted during the test - no notes, no reference sheets, no scratch materials brought from home
- Results are reported through the Credentia platform
Because the test is proctored live and online, your testing environment matters as much as your knowledge. A cluttered desk, a phone within reach, or an unstable internet connection can create problems that have nothing to do with medication knowledge. If you want a deeper sense of how tough the content itself is relative to the format constraints, our How Hard Is the MACE Exam guide breaks this down question type by question type.
| Exam Detail | Specification |
|---|---|
| Total Questions | 60 multiple-choice |
| Scored Questions | 50, distributed across 3 domains |
| Time Allowed | 2 hours |
| Delivery Method | Live online proctoring |
| Language | English |
| Study Aids | Not permitted during testing |
| Administered By | Credentia |
The Three MACE Domains
The current national content outline organizes the MACE into three domains. Understanding how heavily each one is weighted is arguably the single most useful piece of information for planning your study time - it tells you exactly where to focus.
Domain 1: Authorized Duties (16%)
This domain covers the legal and procedural boundaries of what a medication aide is permitted to do. Candidates need to understand scope of practice, when to involve a nurse, and what tasks fall outside their authorization.
- Recognizing situations that require escalation to licensed nursing staff
- Understanding what a medication aide cannot legally do
- Following facility policy alongside state regulation
Domain 2: Medication Administration, Observation and Reporting (60%)
This is the heart of the exam, accounting for 60% of scored items. It covers the actual mechanics of giving medications safely, watching for reactions, and documenting what happened.
- Correct administration routes and techniques
- Recognizing signs of adverse reactions or side effects
- Accurate observation, charting, and reporting practices
- Handling missed doses, refusals, and errors appropriately
Domain 3: Medication Concepts and Measurements (24%)
This domain tests foundational knowledge that supports safe administration - the "why" behind the "how" in Domain 2.
- Basic pharmacology concepts relevant to common medication classes
- Dosage calculations and measurement conversions
- Understanding medication labels and orders
Because Domain 2 alone carries 60% of the scored questions, it deserves the majority of your review time - but Domain 3's measurement and calculation content tends to be where candidates lose points unexpectedly, since math errors are easy to make under time pressure. For a domain-by-domain study breakdown with practice question examples, see the MACE Exam Domains Guide.
Who Takes the MACE and Why
The MACE is typically taken by certified nursing assistants (CNAs) who want to expand their scope of practice to include medication administration. This credential is common in:
- Assisted living communities
- Long-term care and skilled nursing facilities
- Group homes and residential care settings
- Some home health agencies, depending on state rules
Employers value medication aides because they extend the reach of a facility's limited nursing staff - a certified medication aide can handle routine medication passes, freeing nurses for more complex clinical work. If you're weighing whether this credential fits your career goals, our guides on MACE Jobs, MACE Salary Guide, and Is the MACE Certification Worth It go into detail on employment outlook and earning potential.
Eligibility and State Variation
Because states - not Credentia - control eligibility, requirements differ meaningfully depending on where you plan to work. Two examples illustrate the range:
- Colorado requires completion of an approved Medication Aide Training Program and requires the candidate to hold active CNA status before testing.
- Utah's approved pathway requires 100 total training hours, split into 60 didactic (classroom) hours and 40 practical (hands-on) hours.
These aren't interchangeable - a training program approved in one state may not satisfy another state's requirements, and registry outcomes after passing also vary. Before you register or pay any fees, confirm your state's exact prerequisites. Our full MACE Requirements article covers state-by-state variation, training program approval, and documentation you'll need on test day.
Key Takeaway
Don't assume your training hours transfer across state lines - verify your specific state's approved program list before enrolling.
How to Approach Studying for the MACE
Generic study advice only goes so far here - the exam's domain weighting should directly drive your schedule. Since Domain 2 (Medication Administration, Observation and Reporting) makes up 60% of scored content, it deserves roughly three times the review time you give to Domain 1 alone.
Domain 3 Foundations
- Review basic pharmacology terms and medication classes
- Practice dosage calculations and unit conversions until they're automatic
Domain 2 Deep Dive (Part 1)
- Study administration routes and correct techniques
- Work through scenario questions on recognizing adverse reactions
Domain 2 Deep Dive (Part 2)
- Focus on observation, charting, and reporting language
- Practice handling refusals, missed doses, and error scenarios
Domain 1 and Full Review
- Study authorized duties and escalation scenarios
- Take full-length timed practice exams to build stamina for the two-hour format
Because the real exam prohibits any study aids during testing, your practice sessions should also be done without notes once you're past the initial learning phase - you want your recall to work under the same conditions as test day. A structured, domain-weighted plan like this is covered in much more depth in our MACE Study Guide 2026, and if you want a condensed reference for quick review sessions, the MACE Cheat Sheet is built for that purpose.
Timed, realistic practice questions on our practice test platform can also help you get comfortable with the multiple-choice style and pacing before you sit for the live proctored exam.
MACE vs. CNA Certification
It's worth being precise about the relationship between these two credentials, since people often conflate them. CNA certification qualifies you for basic nursing assistant duties - hygiene care, mobility assistance, vital signs, and similar tasks. The MACE builds on top of that foundation; in many states, including Colorado, active CNA status is a prerequisite just to register for the medication aide exam.
In other words, the MACE is not a substitute for CNA certification - it's an additional, narrower credential layered on top of it, specifically focused on medication-related duties. If you're still early in researching the credential itself, our overview articles on MACE Certification and What Is MACE Certification are good starting points, and What Is MACE covers the origin and purpose of the exam in more depth.
Frequently Asked Questions
The exam content itself is standardized through Credentia's national content outline, but eligibility rules, training requirements, and what certification means afterward vary by state. Always check your specific state's medication aide program.
No. NCSBN has stated it no longer develops or owns MACE content. Credentia currently administers the exam nationally, while states retain control over eligibility and licensing decisions.
The exam contains 60 multiple-choice questions, with 50 counted toward your score across three domains. You're allowed two hours to complete it.
No. The MACE prohibits study aids during testing. It's delivered through live online proctoring, so a proctor monitors the session to enforce this in real time.
Medication Administration, Observation and Reporting accounts for 60% of scored questions, making it the highest-priority domain, followed by Medication Concepts and Measurements at 24% and Authorized Duties at 16%.