- What the EHC Credential Actually Is
- The Four Competency Areas Behind the Exam
- How the Examination Is Delivered
- Fees, Retakes, and Registration Mechanics
- Finding a Proctor Who Qualifies
- The DHI Preparation Path
- Sequencing Your Study by Domain
- Who Values the Credential
- Keeping the Credential Current
- Frequently Asked Questions
- EHC stands for Electrified Hardware Consultant, a credential issued by the Door and Hardware Institute (DHI).
- The full examination is described as eight hours, paper and pencil, mixing short-answer, long-answer, and multiple-choice sections.
- Exam fee is USD 550 for DHI members, USD 850 for nonmembers, with a USD 300 retake fee.
- No prerequisites are required, though DHI recommends courses EHC403, EHC413, and EHC423.
What the EHC Credential Actually Is
The Electrified Hardware Consultant credential is a professional certification offered by the Door and Hardware Institute. It sits in the specialized, advanced tier of the door and hardware industry: the people who earn it are expected to understand not just how a door opens and latches, but how that opening is powered, monitored, controlled, and coordinated with fire alarm, access control, and life safety systems.
If you are new to the acronym, our explainers on what EHC is and what EHC stands for cover the naming in more depth. The short version for this article: every reference to EHC here means Electrified Hardware Consultant specifically. Other credentials share the same three letters, and their exam rules, fees, and requirements do not apply to this one.
The credential matters because electrified openings are where hardware specification most often goes wrong. A consultant who can read an electrified hardware drawing, reconcile it with a door schedule, anticipate what the fire marshal will ask, and write a specification that an electrical contractor can actually build from is solving problems that cost real money when they are missed in the field.
The Four Competency Areas Behind the Exam
DHI publishes the examination as four competency statements. Notably, no percentage weights are published, so you cannot assume one area counts more than another. Plan to be competent in all four. For a deeper walk-through of each area, see our complete guide to all four EHC content areas.
Domain 1: Advanced mechanical and electrified hardware product
This is the product-knowledge foundation. Candidates must understand how mechanical hardware and its electrified counterparts function, and how to select between them for a given opening.
- Electrified locks, exit devices, and strikes, and how their operating modes differ
- Power transfer devices, electric hinges, and door position and monitoring devices
- Fail-safe versus fail-secure behavior and when each is appropriate
- Low-voltage circuitry, power supplies, and how components are wired together
Domain 2: Code application knowledge with an understanding of electronic access control systems
This domain joins code knowledge to access control. Candidates need to understand how electronic access control components interact with the hardware at the opening and how codes constrain that interaction.
- Readers, controllers, request-to-exit devices, and credential types at the opening
- Integration between access control and the electrified hardware it governs
- How code requirements shape which hardware and control strategies are permitted
Domain 3: Understanding fire, life safety, accessibility, and building code requirements
The life-safety domain tests whether your hardware choices keep people safe and keep the building compliant. This is where electrified hardware most often runs into regulatory limits.
- Egress requirements and how electrified locking must release in an emergency
- Interface with fire alarm systems and fire door requirements
- Accessibility considerations for operation, operable force, and automatic operation
Domain 4: Understanding of architectural door openings and security needs
The final domain steps back to the whole opening: door, frame, hardware, and the security objective the owner is trying to achieve.
- Reading architectural drawings and door schedules for electrified openings
- Matching hardware and control strategies to the security needs of the space
- Coordinating the opening across trades so the design can actually be installed
How the Examination Is Delivered
The format is where candidates most often get confused, so it is worth reading carefully. DHI describes the full EHC examination as an eight-hour, paper-and-pencil exam with short-answer, long-answer, and multiple-choice sections. That mix is a meaningful departure from the all-multiple-choice format many people associate with professional certification. You will be expected to produce written answers, not just recognize correct ones.
There is a wrinkle on the delivery side. DHI's AHC exam information page states that the multiple-choice component of the EHC is offered through Prolydian with MonitorEDU live remote proctoring, while the EHC page itself describes paper delivery. DHI's general certification policy still names a different testing vendor and restricts remote proctoring, so the policy language and the exam-specific pages do not line up perfectly.
What has not been verified publicly: a current question count, a multiple-choice-only time limit, a passing score, or a published pass rate. Treat any site that quotes those numbers as unsupported unless it cites DHI directly. Our pages on the EHC passing score and EHC pass rate explain what is and is not known, and how hard the EHC exam is addresses difficulty qualitatively.
Fees, Retakes, and Registration Mechanics
The published pricing is straightforward, and DHI membership changes the math noticeably.
| Item | DHI Member | Nonmember |
|---|---|---|
| EHC examination fee | USD 550 | USD 850 |
| Retake fee | USD 300 | |
| Renewal (single credential, every three years) | USD 175 | USD 210 |
| Prerequisites to apply | None required | |
The USD 300 difference between member and nonmember exam fees is significant enough that candidates often compare it against the cost of membership itself before registering. For the full picture, including course costs and renewal, see our EHC certification cost breakdown.
On retakes, the sources do not fully agree. The generic DHI policy sets a two-retake limit, while the EHC page references a third-retake application and directs retakes into Prolydian. If you are unsuccessful on a first attempt, ask DHI exactly how many further attempts you are allowed before you plan around it. Our EHC requirements guide and EHC exam dates page track the registration side of the process.
Finding a Proctor Who Qualifies
Because the full exam is paper-based, candidates arrange their own proctor, and the eligibility rules are tighter than most people expect. Under DHI's Certification Policies, the proctor must hold the same certification you are testing for. That means your proctor needs to be an EHC-certified individual.
- The proctor may not be a family member.
- The proctor may not be employed by the same company, division, or branch as you.
- The stated exception is staff proctoring at DHI's National and Micro Schools.
In a niche credential, the pool of certified proctors is small, which makes this a logistics problem to solve early rather than the week before your test. If your employer has other EHC holders, they likely cannot serve you if they share your company, division, or branch. Start by asking DHI chapter contacts or your instructors from the preparation courses who is certified and available.
Key Takeaway
Identify and confirm a qualified, unaffiliated EHC-certified proctor before you pay for the exam. A missing proctor is the most common avoidable delay in scheduling a paper examination.
The DHI Preparation Path
DHI does not require any course to apply, but it recommends three: EHC403, EHC413, and EHC423. A fourth catalog entry, EHC490, also appears in the published course catalog. Together these cover the topics that the exam leans on.
- Electrified hardware drawings and how to read and produce them
- Access-control integration at the door opening
- Low-voltage circuitry and power distribution
- Troubleshooting electrified openings
- Shop-drawing exercises
- Specification writing
Two cautions apply. First, these are unweighted preparation topics, not an official examination blueprint, so do not treat the course outline as a promise of what will be tested or how heavily. Second, course hours, tuition, and class materials do not tell you anything about exam timing, fees, or what resources you may bring into the exam. Course materials may also cite older code editions, and that does not identify which code version the current exam uses. When the exam touches code, verify the edition with DHI rather than assuming.
For a structured approach built around these topics, our EHC study guide and EHC training overview go further, and the EHC cheat sheet is useful for last-pass review.
Sequencing Your Study by Domain
Since the exam rewards written reasoning as well as recognition, it helps to order your preparation so that foundational product knowledge comes first and integration topics build on it. Here is one way to stage the work, assuming you have a few months and are working alongside a job.
Domain 1: Product and circuitry
- Learn each electrified device type and its failure mode
- Practice low-voltage wiring diagrams until you can draw them from memory
Domain 2: Access control and code
- Trace signal paths from credential to lock release
- Connect each integration point to the code that governs it
Domain 3: Life safety and accessibility
- Work egress and fire alarm release scenarios step by step
- Draft written explanations, since long-answer sections reward clear reasoning
Domain 4: Whole-opening design
- Produce complete shop drawings and specifications for sample openings
- Take timed practice sessions that mix all four domains
The reason for this order is dependency: you cannot reason about code compliance for a device you do not understand, and you cannot design a whole opening until you can handle each component. Because the exam includes handwritten responses, spend part of every week writing answers by hand and under time pressure, not just reading. To test your recall against exam-style prompts, try the EHC practice tests.
Who Values the Credential
The EHC is a specialist credential, and its value concentrates in the parts of the industry where electrified openings are specified, supplied, and installed. Employers and roles that tend to care include:
- Architectural hardware distributors and dealers, where consultants prepare hardware schedules and submittals for electrified openings.
- Door and hardware manufacturers, particularly those selling electrified locking, exit devices, and power products, which need technically credible representatives.
- Architecture and design firms, where a specification writer or consultant has to coordinate hardware with access control and life safety.
- Security integrators and access control contractors, who must tie low-voltage systems to the hardware at the door.
- Facility owners and institutional end users, such as campuses and healthcare systems, that maintain large numbers of electrified openings.
We do not publish a salary figure here because none is verified in DHI's own materials; see our EHC salary guide for a qualitative discussion and EHC jobs for the roles that tend to list the credential. If you are weighing the investment, whether the EHC is worth it works through the tradeoffs without inventing numbers.
Keeping the Credential Current
Certification is not a one-time event. DHI's Continuing Education Program requires 30 CEP points every three years, with at least 24 of those points being technical. Renewal for a single credential costs USD 175 for members and USD 210 for nonmembers.
The technical-points requirement is the part to plan around. Because most of your renewal points must be technical rather than general, choose continuing education that actually builds electrified hardware knowledge: manufacturer training on new products, code update sessions, and advanced DHI coursework. Banking points steadily across the three-year cycle is far easier than scrambling at the end.
Frequently Asked Questions
It stands for Electrified Hardware Consultant, a credential from the Door and Hardware Institute (DHI). It is specific to electrified door hardware and should not be confused with other credentials that use the same acronym.
No prerequisites are required to apply. DHI does recommend three preparation courses: EHC403, EHC413, and EHC423. These are advisory, not mandatory.
The examination fee is USD 550 for DHI members and USD 850 for nonmembers. A retake costs USD 300. Renewal every three years is USD 175 for members or USD 210 for nonmembers.
DHI describes the full exam as an eight-hour paper-and-pencil test, while also offering the multiple-choice component through Prolydian with live remote proctoring. Delivery details for each section should be confirmed with DHI when you schedule.
The proctor must hold the same certification, and cannot be a family member or someone employed by your company, division, or branch. Staff proctoring at DHI's National and Micro Schools is the stated exception.
For a broader overview of the credential and its context, revisit our pages on what EHC certification is, and when you are ready to test your knowledge, start with the EHC practice exams.