Current Maryland Master Electrician format: the PSI examination contains 90 questions worth 100 points, a 240-minute time limit, and a 70% passing score. Calculations is the largest scoring domain at 30 points, while Electrical Theory is worth 20 points.
What Is the Maryland Master Electrician Contractor Exam?
The Maryland Master Electrician examination is the state licensing exam administered through PSI for the Maryland State Board of Electricians. Candidates often search for a Maryland electrical contractor exam because the Master Electrician license is tied to advanced electrical responsibility, supervision, company qualification and contracting work. The actual state examination is the Maryland Master Electrician license exam.
This master-level exam goes beyond basic code lookup. Candidates should prepare for advanced calculations, electrical theory, wiring and protection, wiring methods and materials, equipment for general use, special occupancies, special equipment, special communications, troubleshooting, field practices and rapid NEC navigation.
Exam answer: 90 questions, 100 total points, 240 minutes, a 70% passing score and open-book testing.
Why 90 questions equal 100 points: ten Electrical Theory items are worth two points each. That makes Electrical Theory worth 20 points even though it contains ten scored items.
Critical code-book distinction: the featured 1 Exam Prep package is based on the 2026 NEC for current-code education. The currently published PSI bulletin still lists the 2020 NEC as the only reference allowed in the testing room.
The current scoring blueprint puts 50 of the 100 available points into Calculations and Electrical Theory. Those two areas should receive the largest share of your Maryland Master Electrician exam prep time before you move into the heavily tested NEC article groups.
This page combines 2 primary authority groups and multiple secondary electrical exam-prep research groups, with additional competitor research used internally for topic discovery. Maryland Board and PSI requirements control whenever commercial prep information conflicts.
Maryland Master Electrician Exam Domains
Match your Maryland electrical contractor exam prep time to the current 100-point PSI Master Electrician content outline.
| Exam Area | What to Study | Scoring Weight |
|---|---|---|
| Calculations | Service and feeder loads, branch circuits, conductor sizing, adjustment and correction, motors, transformers, box fill, raceway fill, demand factors, grounding calculations and electrical math | 30 points |
| Electrical Theory | Definitions, Ohm's Law, theory, troubleshooting, equipment and devices, instruments, materials, math, conversions, diagrams and symbols | 20 points | ten 2-point items |
| Wiring and Protection | NEC Articles 100 and 110, branch circuits, feeders, services, overcurrent protection, grounding, bonding and Articles 200 through 285 | 14 points |
| Wiring Methods and Materials | Article 300, conductors, boxes, raceways, cables, conduit, fittings, fill, support and Articles 310 through 398 | 13 points |
| Equipment for General Use | Flexible cords, appliances, heating equipment, motors, transformers, generators, luminaires and Articles 400 through 490 | 9 points |
| Special Occupancies | Hazardous locations, health care, assembly spaces, mobile homes, marinas, temporary installations and Articles 500 through 590 | 8 points |
| Special Equipment | Signs, cranes, elevators, EV equipment, pools, fountains, fire pumps and Articles 600 through 695 | 4 points |
| Special Communications | Emergency systems, standby systems, limited-energy systems, communications and Articles 700 through 830 | 2 points |
Maryland Master Electrician Exam Breakdown
Master Electrician Exam 90 questions | 100 points | 240 minutes | 70% to pass
Testing Provider PSI Examination Services
Licensing Authority Maryland State Board of Electricians
Exam Format Open book
Current Exam-Room Reference NFPA 70, National Electrical Code, 2020 Edition
Largest Scoring Topic Calculations | 30 points
Electrical Theory 20 points | ten 2-point items
Wiring and Protection 14 points
Standard Eligibility Path At least 7 years of qualifying electrical experience under required supervision
Education Credit Up to 3 years may be credited for qualifying formal study or professional training
Maryland Master Electrician Contractor Licensing Path
Maryland licenses Master Electricians statewide through the State Board of Electricians. Candidates must first qualify for and pass the PSI Master Electrician examination, then complete the state license application process.
Standard experience pathway: at least seven years of regular and principal employment providing electrical services for all types of electrical equipment and apparatus while under the direction and supervision of a Maryland licensed Master Electrician or a similarly qualified governmental employee.
Education and training credit: the Board may allow up to three years of credit toward the seven-year experience requirement when the applicant proves completion of comparable formal electrical study or professional training.
Insurance for an active insured license: the Board currently lists at least $300,000 in general liability insurance and at least $100,000 in property damage insurance. Maryland also has uninsured Master statuses with restrictions on work, permits and supervision.
Contractor and company distinction: Board guidance distinguishes an independent Master Electrician from a qualified agent. A qualified agent assigns the license to one company, while an independent Master Electrician provides the required insurance personally and may subcontract work from different entities.
What Is on the Maryland Master Electrician Exam?
Each bar is scaled against Calculations, the largest 30-point category.
Calculations30 points
Electrical Theory20 points
Wiring and Protection14 points
Wiring Methods and Materials13 points
Equipment for General Use9 points
Special Occupancies8 points
Special Equipment4 points
Special Communications2 points
Maryland Master Electrician Exam References and Study Materials
The current PSI bulletin lists one testing-room reference for the Master Electrician exam. The 1 Exam Prep course package adds 2026-code materials for current-code education and advanced contractor exam prep.
| Reference or Study Material | Primary Use | Current Status |
|---|---|---|
| NFPA 70, National Electrical Code | Current PSI exam-room reference for code questions, calculations, wiring, protection, equipment, occupancies and communications | 2020 Edition | current PSI testing-room reference |
| NFPA 70, National Electrical Code | Current-code education, instructor-led NEC study, calculation work, code navigation and broader 2026 electrical knowledge | 2026 Edition | included with the featured course package, not the current PSI exam-room reference |
| Maryland Master Electrician Study Guide | Master-level review across theory, wiring, equipment, special articles, code navigation and exam strategy | Study use only | study guides are not allowed in the testing room |
| Electrician Calculations Study Guide | Service and feeder loads, conductor sizing, motors, transformers, box fill, raceway fill, demand factors, voltage drop and other math practice | Study use only | Calculations is worth 30 points on the current exam |
Your Maryland Master Electrician Contractor Licensing Roadmap
Confirm Master eligibility, apply through PSI, study the 100-point content outline, prepare the correct NEC reference, complete advanced contractor exam prep, pass the examination and finish state licensing.
1
Confirm Master Electrician eligibility
Document the seven-year experience requirement and determine whether qualifying formal electrical education or professional training may provide allowable experience credit.
2
Apply for PSI examination eligibility
Submit the Master Electrician exam application and the required experience documentation through PSI.
3
Review the 100-point blueprint
Put Calculations first, followed by Electrical Theory, Wiring and Protection, Wiring Methods and Materials and the remaining NEC domains.
4
Prepare the correct exam-room NEC
Use the active PSI bulletin to confirm the testing-room edition. The currently published bulletin lists the 2020 NEC as the only reference.
5
Use targeted Maryland contractor exam prep
Build calculation accuracy, electrical theory knowledge, NEC navigation, grounding and bonding skill, service and feeder knowledge, motor work, special-article familiarity and timed practice.
6
Take the PSI Master Electrician examination
Complete the 90-question, 100-point open-book exam within four hours and earn at least 70 percent.
7
Complete Maryland Master licensing
After passing, submit the state Master Electrician license application and provide the insurance documentation required for the license status you plan to hold.
Six-Week Maryland Master Electrician Exam Prep Plan
Week 1
Blueprint and NEC Navigation
- Review all eight scoring domains
- Confirm the current PSI exam-room NEC edition
- Practice NEC indexes, articles and tables
- Take a Master-level diagnostic exam
Week 2
Calculations
- Service and feeder loads
- Demand factors and conductor sizing
- Motors and transformers
- Box fill, raceway fill and voltage drop
Week 3
Electrical Theory
- Ohm's Law and advanced electrical math
- Conversions and formulas
- Diagrams and symbols
- Troubleshooting, equipment and instruments
Week 4
Wiring, Protection and Methods
- Services, feeders and branch circuits
- Grounding and bonding
- Overcurrent protection
- Conductors, raceways, cables and boxes
Week 5
Equipment and Special Articles
- Motors, transformers and general-use equipment
- Special occupancies
- Special equipment
- Emergency, standby and communications systems
Week 6
Timed Master Simulation
- 90-question practice exams
- 240-minute pacing
- Calculation accuracy drills
- Final NEC-navigation and weak-area review
Maryland Open-Book Master Electrician Exam Prep Strategy
Do this during exam prep
- Practice with the currently permitted PSI exam-room NEC edition
- Use the 2026 course materials for current-code learning and broader study
- Give Calculations the largest dedicated practice block
- Learn which NEC article family matches each major problem
- Highlight, underline and use qualifying permanent tabs where permitted
- Complete full four-hour Master practice exams
Avoid these mistakes
- Bringing study guides into the testing room
- Writing notes inside the exam-room NEC
- Using removable Post-it style tabs
- Adding loose or attached papers
- Bringing an NEC edition not permitted by the active PSI bulletin
- Treating calculations like an optional side topic
Open-book strategy: identify the problem type before you search, choose the correct NEC article, table or calculation method, check the conditions and exceptions, show your math clearly, then move on. With 90 questions in 240 minutes, you average about 2.7 minutes per question, but the two-point theory items and multi-step calculations make smart pacing essential.
Maryland Master Electrician Contractor Exam Prep Options
2026 Master Study Package with Instructor-Led NEC Course
Advanced Electrical Contractor Exam Prep
- 2026 NFPA 70 National Electrical Code
- NEC tabs and Master Electrician flash cards
- Maryland Master Electrician Study Guide
- Electrician Calculations Study Guide
- Instructor-led online NEC course
- Simulated practice exams
- NEC overview plus live and recorded instruction
Master Electrician Study Guide and Practice Exam Prep
Structured Master Exam Practice
- Maryland Master Electrician study structure
- Advanced NEC-focused review
- Practice exam preparation
- Calculation and theory reinforcement
- Open-book testing strategy
Master Electrician Study Guide and NEC Combo
Printed NEC Navigation Prep
- Maryland Master Electrician Study Guide
- 2026 NEC paperback
- NEC tabs
- Master-level trade review
- Code-navigation study support
Reference-edition reminder: the featured 2026 Master Electrician study package intentionally teaches from the 2026 National Electrical Code. The currently published Maryland PSI Master Electrician bulletin still lists the 2020 NEC as the only testing-room reference. Use the 2026 materials for current-code education, but align final exam-specific practice and test-day materials with the active PSI bulletin.
Maryland Master Electrician Is a Statewide Advanced Electrical License
Maryland's Master Electrician license represents advanced electrical responsibility and can support contracting, supervision, company qualification and permit-related work when all state and local requirements are met. Local jurisdictions may still require registration.
· Master Electrician exam: 90 questions
· 100 total scoring points
· Four-hour testing limit
· 70% minimum passing score
· Current PSI exam-room reference: 2020 NEC
· Featured course package: 2026 NEC study and instructor-led training
Maryland Master Electrician Contractor Exam Prep FAQ
Maryland Master Electrician Exam Basics
The current PSI Master Electrician examination contains 90 questions worth a total of 100 points.
Ten Electrical Theory items are worth two points each. That makes Electrical Theory worth 20 points and brings the 90-question examination to a total value of 100 points.
Candidates currently receive 240 minutes, or four hours, to complete the examination.
The current minimum passing score is 70 percent.
Yes. The current PSI examination is open book, but candidates may bring only references permitted by the active PSI bulletin.
The currently published PSI bulletin lists NFPA 70, National Electrical Code, 2020 Edition, as the only reference allowed in the testing room.
The featured study package is built around the 2026 NEC for current-code education, instructor-led NEC study, calculations, and broader electrical preparation. Candidates taking the current PSI exam should also prepare with the 2020 NEC because it remains the edition listed for the testing room.
Yes. PSI permits qualifying permanent tabs that cannot be removed without damaging the page. Removable Post-it style flags and tabs with paper inserts are not permitted.
No. PSI permits highlighting and underlining, but the allowed reference must otherwise be unmarked and may not contain additional loose or attached papers.
No. The current PSI bulletin states that study guides are not allowed in the testing room.
Maryland Master Electrician Licensing and Contractor Prep
The standard pathway requires at least seven years of regular and principal electrical work under the direction and supervision of a Maryland licensed Master Electrician or a similarly qualified governmental employee.
Maryland may allow up to three years of credit toward the required experience when an applicant proves completion of a comparable formal course of study or professional training in electrical installation.
Calculations is the largest current scoring category at 30 points. Electrical Theory is next at 20 points.
Important calculation practice includes service and feeder loads, branch circuits, conductor ampacity, adjustment and correction factors, motors, transformers, box fill, raceway fill, grounding and bonding calculations, demand factors, electrical theory math, and voltage-drop concepts.
For an active insured Maryland electrician license, the Board currently lists at least $300,000 in general liability insurance and at least $100,000 in property damage insurance. The Board also provides uninsured master statuses with restrictions.
Maryland currently lists reciprocal Master Electrician arrangements with Delaware, Virginia, West Virginia, and the District of Columbia, subject to the applicable licensing and examination requirements.
Maryland Board guidance explains that a qualified agent assigns the license to a single company and the company provides the required insurance. A Master Electrician provides the required insurance personally and may subcontract work from different entities.
Maryland Board guidance states that the first retest request requires a 30-day wait. Subsequent retest requests cannot be made until 60 days have passed.
1 Exam Prep Maryland Master Electrician Course Resources
Explore Maryland Master Electrician Contractor Exam Prep Resources
2026 Maryland Master Electrician Study Package Master Electrician Exam Prep and Flash Card Combo Master Electrician Study Guide and NEC Combo Maryland Master Electrician Ultimate Exam Prep Combo Maryland PSI Electrician Candidate Bulletin Maryland Master Electrician License Requirements Maryland State Board of Electricians Contact 1 Exam Prep
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Maryland Master Electrician Contractor Exam Prep
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