- What Is Domain 1: Authorized Duties?
- Why Authorized Duties Is Only 16% (And Why That's Deceptive)
- Core Topics You Must Master
- Scope of Practice: What a Medication Aide Can and Cannot Do
- How Domain 1 Questions Are Written
- A Focused Study Plan for Domain 1
- How Domain 1 Fits With the Other Domains
- Common Mistakes Candidates Make on Authorized Duties Questions
- Frequently Asked Questions
- Domain 1: Authorized Duties makes up 16% of the 50 scored MACE questions.
- This domain tests legal scope of practice, not medication math or clinical technique.
- Questions focus on what a medication aide is authorized to do under state delegation rules.
- Because it's the smallest domain, treat it as a fast, high-confidence scoring opportunity.
What Is Domain 1: Authorized Duties?
Domain 1: Authorized Duties is the first of three content areas on the Medication Aide Certification Examination (MACE), currently administered by Credentia. While it carries the smallest weight of the three domains at 16% of scored items, it is arguably the most foundational - it establishes the legal and procedural boundaries that shape everything else tested on the exam.
Authorized Duties questions ask you to identify what a certified medication aide is permitted to do, under what supervision, and where those authorizations stop. This isn't clinical judgment testing; it's regulatory and procedural knowledge. If you've completed an approved medication aide training program in your state, most of this material should already feel familiar - the exam is checking whether you internalized it correctly, not whether you can recall obscure trivia.
If you haven't yet reviewed how this domain relates to the exam as a whole, our MACE Exam Domains 2026: Complete Guide to All 3 Content Areas breaks down all three content areas side by side, which is a useful orientation before you drill into Domain 1 specifics.
Why Authorized Duties Is Only 16% (And Why That's Deceptive)
At 16% of scored content, Domain 1 is the lightest of the three domains - Domain 2 (Medication Administration, Observation and Reporting) carries 60%, and Domain 3 (Medication Concepts and Measurements) carries 24%. It's tempting to deprioritize Authorized Duties because of its smaller footprint. That would be a mistake for two reasons.
- It's foundational, not isolated. Scope-of-practice knowledge underpins how you interpret Domain 2 scenario questions about administration and reporting. If you don't know what you're authorized to do, you can't correctly judge whether an administration scenario is appropriate.
- It's a fast-scoring domain. Authorized Duties questions tend to be more definitional and rule-based than the scenario-heavy items in Domain 2. Candidates who study this domain thoroughly often find these questions quicker to answer with confidence, which helps you manage the two-hour clock across all 60 questions.
Think of Domain 1 as low-hanging fruit relative to its weight - a smaller slice of the score, but one that's comparatively easier to lock down with focused review.
Core Topics You Must Master
Authorized Duties questions cluster around a predictable set of themes. While exact question wording varies, the underlying concepts a candidate must master include the following.
Delegation and Supervision Boundaries
Medication aide authority is delegated by a licensed nurse or supervising authority, not held independently. Candidates must understand who can delegate medication administration tasks, how that delegation is documented, and what happens when supervision is unavailable.
- Understanding the chain of accountability between nurse, medication aide, and facility
- Recognizing when a task falls outside delegated authority
- Knowing what to do when a supervising nurse is not immediately reachable
Scope of Practice Limits
This is the heart of Domain 1: knowing precisely which medications, routes, and situations a certified medication aide is authorized to handle versus which require a licensed nurse.
- Routine oral, topical, and other routine administration typically within scope
- Administration types that fall outside a medication aide's authorization in most state programs
- Situations requiring immediate escalation rather than independent action
Facility Policy and State-Level Variation
MACE is a multi-state exam, but authorization details are ultimately set by each state's nursing or health authority. Candidates should understand that facility policy and state program rules govern day-to-day duties, and that the exam tests general authorized-duty principles that apply broadly across jurisdictions.
- Recognizing that state authorities - not the exam vendor - determine eligibility and scope
- Understanding that facility-specific policies operate within, and never override, state authorization limits
Resident Rights and Consent Within Authorized Duties
Authorized duties also include respecting resident autonomy - understanding a resident's right to refuse medication, the aide's role in documenting refusals, and when refusal triggers a report to the supervising nurse.
- Right to refuse and the aide's appropriate response
- Documentation obligations tied to refusals or missed doses
- Reporting thresholds that convert an authorized-duty issue into a nursing escalation
Scope of Practice: What a Medication Aide Can and Cannot Do
Because scope-of-practice questions are the backbone of Domain 1, it helps to think of your authorized duties as falling into three practical buckets: things you do routinely, things you never do, and things you do only under specific conditions or after checking with a nurse.
| Category | Typical Examples | Action Required |
|---|---|---|
| Routinely authorized | Administering prescribed oral and topical medications per facility protocol | Follow standard administration procedure and document |
| Conditionally authorized | Administering certain medications only after specific training or state approval | Verify state and facility authorization before acting |
| Outside scope | Tasks requiring clinical assessment or nursing judgment | Escalate to supervising nurse; do not act independently |
Key Takeaway
When a Domain 1 question describes a gray-area scenario, the safest answer is almost always the one that escalates to a supervising nurse rather than the one that assumes independent authority.
For a broader sense of how these authorized-duty boundaries connect to hands-on administration procedures, see MACE Domain 2: Medication Administration, Observation and Reporting (60%) - Complete Study Guide 2026, since Domain 2 builds directly on the authorization concepts covered here.
How Domain 1 Questions Are Written
MACE is delivered as a 60-question, multiple-choice exam under live online proctoring through the Credentia platform, with no study aids permitted during the test. Domain 1 questions tend to follow a few recognizable formats:
- Definitional recall: "Which of the following best describes the role of a certified medication aide?"
- Scenario judgment: A short situation is described, and you must choose whether the medication aide acted within or outside authorized duties.
- "Best next step" items: You're given a situation involving a resident, a medication, or a supervision gap, and asked to select the most appropriate action - often testing whether you know when to escalate.
Unlike Domain 3's calculation-heavy items, Domain 1 rarely requires math. The challenge is precision of language - distinguishing between similar-sounding answer choices where only one accurately reflects authorized scope. If you want a broader sense of how MACE question difficulty compares across domains, How Hard Is the MACE Exam? Complete Difficulty Guide 2026 covers this in detail.
A Focused Study Plan for Domain 1
Because Authorized Duties is a relatively contained domain, it doesn't need weeks of dedicated review - but it does deserve a defined block of focused study early in your prep, before you move into the heavier lift of Domains 2 and 3.
Foundations of Authorized Duties
- Review your state's approved medication aide training curriculum for scope-of-practice content
- List every medication administration task explicitly authorized versus restricted
- Study delegation and supervision chains until you can explain them without notes
Scenario Practice and Escalation Logic
- Work through scenario-style practice questions focused on "authorized vs. not authorized"
- Drill resident refusal and reporting scenarios until the correct escalation path is automatic
- Move into Domain 2 review, since it builds directly on these authorization boundaries
This short, front-loaded approach works well within a larger study schedule. For a full multi-week plan covering all three domains, see our MACE Study Guide 2026: How to Pass on Your First Attempt, which sequences Domain 1 review against the heavier Domain 2 and Domain 3 content.
How Domain 1 Fits With the Other Domains
Understanding where Domain 1 sits relative to Domain 2: Medication Administration, Observation and Reporting (60%) and Domain 3: Medication Concepts and Measurements (24%) helps you allocate study time proportionally without neglecting the smaller domain.
| Domain | Weight | Primary Focus |
|---|---|---|
| Domain 1: Authorized Duties | 16% | Scope of practice, delegation, escalation rules |
| Domain 2: Medication Administration, Observation and Reporting | 60% | Administration procedure, observation, documentation, reporting |
| Domain 3: Medication Concepts and Measurements | 24% | Dosage forms, measurement, medication concepts |
Since Domain 2 carries the majority of scored items, it deserves the bulk of your study hours - but Domain 1's scope-of-practice framework is what makes many Domain 2 scenario questions answerable in the first place. Treat the two as connected rather than separate study blocks. For details on the highest-weighted domain, see MACE Domain 3: Medication Concepts and Measurements (24%) - Complete Study Guide 2026 and its companion Domain 2 guide linked above.
Common Mistakes Candidates Make on Authorized Duties Questions
- Assuming facility custom equals authorized scope. What "everyone does" at a particular facility isn't always what's officially authorized - the exam tests the rule, not the workaround.
- Confusing conditional authorization with full authorization. Some duties are only authorized after specific additional training or state approval; missing that condition leads to wrong answers.
- Choosing independent action over escalation. When two answers seem close, the escalation-to-nurse option is frequently correct on ambiguous scenario items.
- Overlooking resident rights language. Right-to-refuse and documentation obligations are easy to skip in review but appear regularly in this domain.
If you want to gauge how these mistakes typically show up in exam-style items, our Best MACE Practice Questions 2026: What to Expect on the Exam walks through sample question patterns, and you can test your own readiness with timed practice sets on the main practice test hub.
Frequently Asked Questions
Domain 1 makes up 16% of the 50 scored questions on the MACE content outline. The exam itself has 60 total multiple-choice questions, including unscored pretest items mixed in.
It's a mix, but leans more toward definitional and rule-based recall than the heavy scenario reasoning found in Domain 2. Expect questions on delegation, scope limits, and escalation rules.
The core concepts tested are broadly consistent, but actual authorized duties are ultimately set by each state's nursing or health authority and by approved training programs, so always confirm specifics with your state program.
Given its 16% weight versus Domain 2's 60% and Domain 3's 24%, a proportionally smaller but still focused block of study time is appropriate - enough to make scope-of-practice and escalation rules automatic before moving to heavier domains.
See MACE Pass Rate 2026: What the Data Shows for exam-wide performance context, and Is the MACE Certification Worth It? Complete ROI Analysis 2026 for how certification factors into career decisions.