- The Plain-English Definition
- Who Writes, Delivers, and Scores the Exam
- What the Exam Is Actually For
- How the Exam Is Built: Format and Timing
- The 13 Official Objectives, Domain by Domain
- Where the Question Volume Sits
- Eligibility and the Path to Sitting
- Fees, Scheduling, and Testing Conditions
- Reading the Pass-Rate and Scoring Data Carefully
- Who Hires Licensed Mining Engineers
- Sequencing Your Preparation Around the Blueprint
- Common Misunderstandings About This Credential
- Frequently Asked Questions
- PE-M&MP here means the NCEES Principles and Practice of Engineering exam in Mining and Mineral Processing, a licensure exam.
- The exam has 85 questions across 13 official objectives, with 8 hours 30 minutes of testing time.
- Mineral Processing plant equipment (Domain 10) carries the largest question range: 9 to 14 questions.
- The NCEES fee is $400 per attempt; your state board may charge separate application fees.
The Plain-English Definition
A PE-M&MP, in the context of this site, is the Principles and Practice of Engineering examination in Mining and Mineral Processing. NCEES labels it "PE Mining and Mineral Processing." It is the discipline-specific, professional-level exam that mining and mineral processing engineers take as the final examination step toward becoming a licensed Professional Engineer (PE).
It is not a vendor certification, not a short-course credential, and not a membership designation. It is a licensure examination, which changes how you should think about everything from eligibility to renewal. If you want a quick orientation to the terminology itself, our short explainers on what PE-M&MP stands for and the meaning of PE-M&MP cover the naming, while this article walks through the substance of the exam itself.
Who Writes, Delivers, and Scores the Exam
The exam is issued and administered by the National Council of Examiners for Engineering and Surveying (NCEES). NCEES writes the exam specifications, develops and scores the questions, and reports results. It does not grant your license. That authority belongs to the state or territorial engineering licensing board you apply through.
The exam is computer-based and delivered through Pearson VUE at approved Pearson test centers. You test in person; there is no remote option described for this exam. Because licensure is a board function, your board decides whether you are eligible to sit, whether additional paperwork is required, and how your license is renewed afterward.
What the Exam Is Actually For
Passing the PE exam is one requirement on the road to a PE license. The license, in turn, is what allows an engineer to take legal responsibility for engineering work, sign and seal certain documents, and in many jurisdictions supervise other engineers' work in a professional capacity. For mining and mineral processing engineers, that can touch areas such as mine design and planning, ground control, processing plant design, environmental management, and reclamation planning.
Because it is a licensure exam rather than a standalone credential, there is no separately renewable NCEES certification attached to it. Once you hold a PE license, the issuing board sets the renewal period and continuing professional competency requirements. NCEES offers a CPC tracking service, but your board determines what counts.
How the Exam Is Built: Format and Timing
The structure at a glance
| Feature | PE Mining and Mineral Processing |
|---|---|
| Total questions | 85, including unidentified unscored pretest items |
| Testing time | 8 hours 30 minutes |
| Appointment length | 9 hours 30 minutes (includes 2-minute NDA, 8-minute tutorial, 50-minute scheduled break) |
| Question types | Multiple-choice plus alternative item types: multiple-correct, point-and-click, drag-and-drop, numerical fill-in |
| Credit | Correct/incorrect only; no partial credit; no deduction for wrong answers |
| Offered | Annual, single-day, computer-based |
| Next scheduled sitting | October 27, 2026 |
| Units | SI and USCS |
Two sections, one clock
The exam is divided into two sections that share the same testing clock. Once you submit a section, you cannot reopen it. That makes pacing a real skill: spending too long in the first section leaves you squeezed in the second, and you cannot go back to fix an answer you rushed.
Closed book, with a supplied handbook
This is a closed-book exam. You work from a supplied, searchable electronic reference handbook and may not bring personal reference materials. You are allowed one NCEES-approved calculator. Older public descriptions that call the exam "open book," 80 questions, or 8 hours are out of date; the October 2025 NCEES specification takes precedence.
The practical consequence is that you need to learn where things live in the handbook, not just the underlying engineering. A formula you know but cannot find quickly still costs you time. Our PE-M&MP cheat sheet is a useful companion for consolidating the must-know facts you will want to recall without hunting.
The 13 Official Objectives, Domain by Domain
The NCEES specification organizes the exam into 13 numbered objectives. These are the exam's official content areas, not a study curriculum. The illustrative subtopics in the specification are examples, not an exhaustive list. For a deeper breakdown, see our complete guide to the 13 PE-M&MP exam content areas. Here is the full list with the official question-count range for each.
Exploration
Domain 1: Exploration: Methods and Techniques (3-5 questions)
How exploration programs are designed and what data they produce.
- Expect questions on selecting and interpreting exploration methods.
- Think about how data quality feeds later resource decisions.
Domain 2: Exploration: Site Geologic and Geotechnical Conditions (3-5 questions)
Characterizing the ground you intend to mine or build on.
- The official range here is 3-5, not the 5-8 shown on some course pages.
- Geologic and geotechnical conditions connect directly to ground control later.
Domain 3: Exploration: Resources/Reserves (5-8 questions)
Estimating and classifying what is in the ground and what can be economically extracted.
- Understand the distinction between resources and reserves.
- Economics and cost management cut across this domain.
Mine Planning and Operations
Domain 4: Mine Planning/Operations: Mining Methods and Layouts (7-11 questions)
Selecting and laying out surface and underground mining methods.
Domain 5: Mine Planning/Operations: Mine Equipment, Facilities, and Systems (8-12 questions)
The second-largest range on the exam. The official range is 8-12, not the 8-10 shown on some course pages.
- Equipment selection, sizing, and system performance.
- Facilities and supporting systems for mine operations.
Domain 6: Mine Planning/Operations: Ground Control (6-9 questions)
Keeping excavations stable and workers safe.
Domain 7: Mine Planning/Operations: Mine Planning and Site Layout (6-9 questions)
Sequencing, scheduling, and arranging the physical site.
Mineral Processing
Domain 8: Mineral Processing: Laboratory/Pilot Testing and Results (4-6 questions)
Designing tests and interpreting results that inform process design.
Domain 9: Mineral Processing: Process Flow Sheets (6-9 questions)
Developing and reading flow sheets that connect unit operations into a coherent circuit.
Domain 10: Mineral Processing: Plant Equipment, Facilities, and Systems (9-14 questions)
The largest single range on the exam, covering the equipment and systems that make up a processing plant.
Environment and Reclamation
Domain 11: Environment and Reclamation: Site, Mining, and Processing Characterization/Baseline (3-5 questions)
Establishing baseline conditions before and during operations.
Domain 12: Environment and Reclamation: Environmental Management Systems (5-8 questions)
Systems for managing environmental performance and compliance across the project life.
Domain 13: Environment and Reclamation: Reclamation Plan and Cost (5-8 questions)
Planning reclamation and estimating what it will cost.
Where the Question Volume Sits
NCEES publishes question-count ranges, not fixed percentage weights, and it does not convert those ranges into percentages. So avoid any source that gives you neat percentage weights per domain; they are not in the official specification.
What the ranges do tell you is relative emphasis. Domain 10 (Plant Equipment, Facilities, and Systems) is largest at 9-14 questions, followed by Domain 5 (Mine Equipment, Facilities, and Systems) at 8-12. Domain 4 (Mining Methods and Layouts) follows at 7-11. At the other end, Domains 1, 2, and 11 each run only 3-5 questions.
Because of how the ranges overlap, the minimums and maximums do not sum to exactly 85, so treat the ranges as guidance on emphasis rather than a precise allocation. If you are weighing where your time pays off, our PE-M&MP study guide turns the blueprint into a preparation plan.
Eligibility and the Path to Sitting
Eligibility is controlled by the licensing board you select, not by NCEES. That means requirements can differ by jurisdiction, and you should confirm them with your board before you pay for anything.
A common licensure pathway looks like this:
- Earn a bachelor's degree in engineering from an EAC/ABET-accredited program.
- Pass the Fundamentals of Engineering (FE) exam.
- Complete four years of acceptable engineering experience.
- Pass the PE exam.
This is a common pathway, not a universal prerequisite for sitting the exam. Some boards have different sequencing or alternatives. Similarly, NCEES Record applications for engineering use five U.S.-licensed engineer references, but that is a records-program requirement and not a universal exam-sitting prerequisite. Your board's application rules control.
Key Takeaway
Before you register for anything, contact your state or territorial board and ask exactly what it requires to approve you to sit for PE Mining and Mineral Processing. Our PE-M&MP requirements guide explains how to work through those questions.
Fees, Scheduling, and Testing Conditions
What you pay
The NCEES exam fee is $400 per attempt. Separate board application fees can apply on top of that, and those vary by jurisdiction, so budget accordingly. The official NCEES e-book practice exam costs $59.95 and includes 85 questions with solutions, including alternative item types, based on the October 2025 specifications (104 pages). For the full picture, see the PE-M&MP certification cost breakdown.
When you can sit
The exam is offered once a year, as a single-day computer-based sitting. The next scheduled date is October 27, 2026. Because it is annual, missing the registration or board-approval window can mean waiting a full year, so plan your timeline backward from the exam date. Details on windows and deadlines are in our PE-M&MP exam dates guide.
Test-day conditions
- Location: an approved Pearson VUE test center, in person.
- Materials: closed book; use only the supplied searchable electronic reference handbook.
- Calculator: one NCEES-approved calculator.
- Breaks: a 50-minute scheduled break is built into the 9 hour 30 minute appointment.
- Units: expect both SI and USCS.
Reading the Pass-Rate and Scoring Data Carefully
NCEES reports results as pass/fail based on a scaled score meeting its minimum-competence standard. It does not publish a numerical passing score, so any site claiming an exact number of questions you must get right is guessing. Wrong answers carry no penalty, which means you should answer every question.
The most recent dated table from NCEES (updated January 2026) shows a 57% first-time pass rate (47 examinees) and a 50% repeat pass rate (10 examinees). Two cautions apply. First, these numbers come from the prior October administration, not the upcoming October 2026 sitting. Second, the sample sizes are small, so a handful of candidates can move the percentage noticeably. Treat these as context, not a prediction of your result. For more on interpreting them, see our PE-M&MP pass rate analysis and the passing score explainer.
Who Hires Licensed Mining Engineers
Mining and mineral processing engineers work for operating mining companies, mineral processing and metallurgical operations, engineering and consulting firms, equipment suppliers, and government and regulatory agencies. The domains themselves hint at the work: exploration support, mine design and operations, plant design and optimization, and environmental management and reclamation planning.
On compensation, the most defensible public figure is the U.S. Bureau of Labor Statistics median annual wage for mining and geological engineers, including mining safety engineers: $106,220 (May 2025). That number covers the whole occupation. It is not a PE-specific salary and does not measure a licensure premium, so do not read it as "what a PE earns." For a careful treatment, see the PE-M&MP salary guide, and for the bigger question of whether licensure pays off for your situation, the ROI analysis. If you are exploring roles, our overview of PE-M&MP jobs is a good next stop.
Sequencing Your Preparation Around the Blueprint
Rather than a generic schedule, tie your calendar to the blueprint. The logic below follows the exam's own structure: start with the heaviest, most interconnected material, and leave the lower-volume areas for efficient review.
Plant equipment and flow sheets (Domains 9 and 10)
- Domain 10 has the largest range (9-14), so start here.
- Learn flow sheets alongside equipment so each unit operation has context.
Mine methods, equipment, and ground control (Domains 4, 5, 6, 7)
- These four domains together make up a large share of the exam.
- Tie ground control back to the geotechnical conditions in Domain 2.
Resources, lab testing, environment, reclamation (Domains 1-3, 8, 11-13)
- Lower individual ranges, but cost, regulation, and economics cut across them.
- Finish with timed practice in the supplied handbook environment.
Whichever order you choose, practice finding information in a searchable handbook, rehearse numerical fill-in and drag-and-drop item types, and use the official NCEES practice exam to calibrate. Note that NCEES posted errata for its practice exam (ISBN 978-1-947801-38-7) on November 3, 2025, so check it before relying on any practice solution. When you want to test yourself against realistic question styles, our PE-M&MP practice tests are built for that.
Common Misunderstandings About This Credential
"It's open book."
Older public descriptions said so, but the October 2025 specification describes a closed-book exam with a supplied searchable handbook. Personal reference materials are prohibited.
"There's a published cut score."
NCEES does not publish a numerical passing score. Results are pass/fail against a minimum-competence standard.
"Domain weights are set percentages."
The specification gives question-count ranges only. Any percentage you see elsewhere is a conversion that NCEES itself has not made.
"It renews like a certification."
It does not. This is a licensure exam; renewal belongs to your license and is governed by your board.
"Every board requires the same path."
The common degree, FE, experience, PE pathway is common, not universal. Your board decides.
For a broader set of plain-language explainers on the credential, see what PE-M&MP certification is, and for a one-stop overview, the PE-M&MP certification page.
Frequently Asked Questions
On this site, it is the NCEES Principles and Practice of Engineering exam in Mining and Mineral Processing. It is a licensure exam taken as a step toward becoming a Professional Engineer in this discipline, administered by NCEES and delivered through Pearson VUE.
There are 85 questions, including unidentified unscored pretest items. Testing time is 8 hours 30 minutes within a 9 hour 30 minute appointment that includes a nondisclosure agreement, a tutorial, and a 50-minute scheduled break.
Domain 10, Mineral Processing: Plant Equipment, Facilities, and Systems, has the largest range at 9-14 questions. Domain 5, Mine Planning/Operations: Mine Equipment, Facilities, and Systems, is next at 8-12.
The NCEES exam fee is $400 per attempt. Your licensing board may charge separate application fees, which vary by jurisdiction. The official NCEES practice exam e-book is priced separately at $59.95.
No. NCEES reports pass/fail based on a scaled score meeting its minimum-competence standard and does not publish a numerical cut score. There is no penalty for wrong answers, so answer every question.
Understanding what the PE-M&MP actually is, a closed-book, 85-question, 13-domain licensure exam administered by NCEES, is the foundation for everything else: confirming eligibility with your board, budgeting your fees, and building a preparation plan around the blueprint rather than around rumor.