- The 2027 Phase I Calendar at a Glance
- The Registration Window and Payment Deadline
- What Exam Day Looks Like: April 19 and 20, 2027
- Computer-Based Delivery Through Pearson VUE and HumRRO
- Choosing When to Sit During Residency
- The April 2026 Blueprint and the 2027 Sitting
- Working Backward From April 19: A DACVS-Specific Prep Calendar
- After the Exam: Results and What Comes Next
- Frequently Asked Questions
- 2027 Phase I registration runs September 16 to October 30, 2026; payment of USD 795 is due January 8, 2027.
- The exam is April 19, 2027 in the Americas and Europe, and April 20 in Asia and Oceania.
- Phase I is computer-based at Pearson VUE centers: 125 questions, a seven-hour period, one optional break of up to an hour.
- Residents may sit any time during residency, optimally in year two, and must pass within six years of starting.
The 2027 Phase I Calendar at a Glance
The Diplomate, American College of Veterinary Surgeons - Phase I (DACVS) pathway is administered by the American College of Veterinary Surgeons (ACVS), and the Phase I Surgical Knowledge Examination is a once-a-year event. That single fact shapes everything about scheduling. Unlike credentials that offer rolling appointment windows throughout the year, Phase I has one examination date per region, a defined registration window months in advance, and a separate payment deadline. Miss the window and your next opportunity arrives a full year later.
Everything in this article is drawn from the ACVS 2027 Phase I Surgical Knowledge Examination Information Pamphlet (September 2026) and the ACVS Phase I examination page. Because ACVS publishes updated pamphlets annually, always confirm final dates against the current pamphlet before you commit travel or leave plans. If you want the broader picture of what the credential is and how Phase I fits into it, start with our explainer on what DACVS is.
| Milestone | 2027 Phase I Date |
|---|---|
| Registration opens | September 16, 2026 |
| Registration closes | October 30, 2026 |
| Payment due (USD 795) | January 8, 2027 |
| Exam: Americas and Europe | April 19, 2027 |
| Exam: Asia and Oceania | April 20, 2027 |
| Results released | Ordinarily four to six weeks after the exam |
One naming note: this article's title references 2026 because that is when the 2027 cycle's deadlines fall. The registration window you must hit is in autumn 2026, even though you sit the exam in spring 2027.
The Registration Window and Payment Deadline
Registration is a six-week window, from September 16 to October 30, 2026. That is short relative to the seven-month runway to the exam, and it comes early in the academic year when residents are often deep in clinical rotations. Treat October 30 as a hard stop, not a target.
Registration and payment are separate steps
A detail that trips up candidates: the registration deadline and the payment deadline are different dates. You register by October 30, 2026, but the USD 795 fee is not due until January 8, 2027. This gives you more than two months between locking in your seat and paying. Do not confuse the two. Registering without later paying leaves your candidacy incomplete, and paying cannot substitute for registering on time. For a fuller look at what the credential costs beyond this one fee, see our DACVS certification cost breakdown.
What you need before you can register
Phase I eligibility requires an ACVS resident in good standing, without applicable probation or sanctions, along with an adviser attestation and your own training and study-readiness attestation in CERT (the ACVS credentialing system). Line these up before September 16 rather than after. An adviser who is traveling or on leave in October can quietly consume your entire window. Email your adviser in August so the attestation is not the bottleneck. Our guide to DACVS requirements and eligibility covers the full qualification pathway.
What Exam Day Looks Like: April 19 and 20, 2027
The exam is scheduled April 19, 2027 in the Americas and Europe and April 20, 2027 in Asia and Oceania. The one-day offset reflects time zones, so that candidates worldwide sit the same examination in the same global window. Which date applies to you depends on where your testing center is located.
Format and timing
Phase I consists of 125 single-best-answer multiple-choice questions, including approximately ten unscored pilot questions. You will not know which items are pilot questions, so answer every question as though it counts. The published examination period is seven hours, divided into two equal-time parts, with an optional scheduled break of up to one hour. During that scheduled break, the test clock stops.
Several timing rules matter for planning your day:
- Review within a part is permitted. You can flag and revisit questions inside the part you are working on.
- You cannot return to Part One after the break. Once you move into the second part, the first is closed. Finish your review before you break.
- Unscheduled breaks do not pause the clock. Only the optional scheduled break stops the timer. Stepping away at any other time costs you exam time.
- You stay at the center during breaks. No phones, notes, or study materials are accessible. Laminated note paper is provided at the testing center.
Books, notes, phones and other information aids are prohibited during the exam. Plan your food, water and logistics so you do not need to improvise during an unscheduled break.
Pacing Across Two Parts
With 125 questions across two equal-time parts, you will roughly halve the question load between them. The practical lesson is that Part One is a closed door.
- Use your within-part review time fully before breaking, because you cannot go back.
- Take the optional scheduled break; the clock stops, so it costs you nothing in exam time.
- Do not spend the scheduled break trying to access notes; it is not permitted and risks your candidacy.
The published seven-hour figure is the official examination period. This guide reports that figure rather than a separately inferred appointment length, so check the pamphlet and your Pearson VUE confirmation for exact check-in expectations at your center.
Computer-Based Delivery Through Pearson VUE and HumRRO
Delivery is computer-based at Pearson VUE (Pearson Professional Assessments) centers, coordinated through HumRRO. In practice, this means your exam experience is a standard proctored computer test at a commercial testing center, not a campus-based sitting administered by your residency program.
That has scheduling consequences. Testing-center capacity is finite, and on a single global examination date, seats fill. Once you receive instructions for scheduling your appointment, act promptly rather than waiting weeks. Check the Pearson VUE ACVS page at pearsonvue.com for center locations, and confirm the center nearest you can accommodate the April 19 or April 20 date that applies to your region. Residents in rural areas or smaller countries should check availability early, since travel to a distant center may require lodging the night before.
Test-day logistics worth planning now
- Bring the identification Pearson VUE requires; verify the specifics in your appointment confirmation.
- Arrive early enough to complete check-in without eating into your clock.
- Plan meals and hydration around the break rules, since you remain at the center during breaks.
- If you are traveling across time zones, give yourself at least one full night of normal sleep before the exam.
Choosing When to Sit During Residency
ACVS allows residents to sit Phase I at any time during residency, with the optimal timing generally in the second year. You must pass within six years of starting residency. Because the exam is offered once a year, "any time during residency" really means "any April during residency," and the choice you make about which year to sit shapes your preparation window.
Training to enter the pathway requires veterinary qualification and a twelve-month rotating internship or equivalent experience. Full DACVS certification additionally requires completion of at least a three-year, 156-week approved residency, including 110 weeks of surgical training, an accepted scientific publication, approved credentials, and both Phase I and Phase II. Importantly, those full-credential completion requirements are not prerequisites to sitting Phase I during residency. You do not need to finish your residency, or your publication, before you take the Phase I exam. Passing Phase I alone does not award the Diplomate credential; it is one requirement among several.
Why the second year is commonly recommended
Phase I tests surgical fundamentals and basic science rather than specific clinical diseases and their treatment, according to the current ACVS Examination FAQ. By the second year, most residents have enough applied exposure to anchor anatomy, physiology and surgical principles in clinical context, while the material is not yet buried under years of case work. Sitting too early can mean less applied context; sitting too late compresses your remaining attempts against the six-year ceiling. If you are weighing how demanding the exam is before choosing a year, our analysis of how hard the DACVS exam is offers perspective.
The April 2026 Blueprint and the 2027 Sitting
Timing questions are not only about dates; they are also about which version of the content outline applies to you. ACVS published a revised Phase I examination blueprint effective April 2026 for the 2027 examination, following a 2024-2025 Job Task Analysis. A May 7, 2026 announcement confirmed that the revised blueprint governs the 2027 sitting. If you are preparing for April 2027, you are preparing against the new blueprint.
The blueprint organizes the exam into four main disciplines, which are official examination disciplines rather than preparation-curriculum headings:
The Four Examination Disciplines
- Basic Science (Anatomy, Physiology, Pathobiology, Microbiology, Biomechanics, plus body-system coverage)
- Pharmacology (Antimicrobials, Fluid Therapy, Biological Therapy and related drug categories)
- Principles of Anesthesia/Analgesia and Pain Management (Anesthetic Equipment, General and Local Anesthesia, Analgesics, Anesthetic Drugs, Inflammatory Modulation)
- Surgical Methods (Tissue Handling/Hemostasis, Aseptic Techniques, Wound/Tissue Healing, Instrumentation Implants, Fundamentals and Principles of Surgery)
The blueprint prints approximate knowledge-area weights separately for the small-animal and large-animal forms, without aggregate percentages for the four main disciplines. Anatomy is the largest individual knowledge area, at 10% for small animals and 12% for large animals. Small Animal covers domestic canine, feline and non-species-specific content; Large Animal covers equine, food animal, small ruminant, camelid and non-species-specific content. For a deeper walk through each area, see our complete guide to the four DACVS exam domains.
The reading list is unchanged
One piece of scheduling-relevant good news: the 2027 Phase I reading list is unchanged from 2026. If you began reading from the 2026 list, your progress carries over. You do not need to restart because the examination year rolled forward.
Working Backward From April 19: A DACVS-Specific Prep Calendar
With a fixed April 19 or 20 exam date, the most useful scheduling exercise is working backward. The schedule below is an illustration, not an ACVS-prescribed plan, and it ties each block to the actual blueprint disciplines rather than to generic study phases. Adjust it to your own residency rotation load.
Administrative Lock-In
- Secure your adviser attestation and complete your CERT training attestation.
- Register before October 30; note the January 8 payment date on your calendar.
- Pull the 2027 pamphlet, blueprint and reading list into one folder.
Basic Science Foundation
- Start with Anatomy, the largest single knowledge area (10% small animal, 12% large animal).
- Layer in Physiology and Pathobiology, which carry 9% each in the small-animal form.
- Pay the USD 795 fee before January 8.
Pharmacology and Anesthesia
- Cover Antimicrobials, Fluid Therapy and drug categories, then Anesthesia, Analgesia and Pain Management.
- Large-animal candidates should include Intrasynovial Therapy within Pharmacology.
Surgical Methods and Integration
- Drill Tissue Handling/Hemostasis, Aseptic Techniques, Wound/Tissue Healing and Instrumentation Implants.
- Begin timed, full-length practice under realistic two-part conditions.
Consolidation
- Review weak knowledge areas only; avoid starting new material.
- Confirm your Pearson VUE appointment, route and ID requirements.
Practice under exam-like conditions matters because of the two-part structure. You cannot return to Part One after the break, so rehearse committing to answers and finishing your review before the halfway point. For a more complete preparation framework, see our DACVS study guide, and use our practice tests to simulate single-best-answer question pacing.
After the Exam: Results and What Comes Next
Results are ordinarily released in four to six weeks. That is a meaningful wait, and it affects planning for the rest of the year, particularly if your residency timeline or job search depends on the outcome.
The passing standard is criterion-referenced, set by experts and equated across years, and it cannot be raised after the examination. No fixed numerical pass mark or current issuer-wide Phase I pass rate has been verified, so be cautious of any source quoting a specific cutoff or percentage. Our pages on the DACVS passing score and DACVS pass rate explain what is and is not publicly established. A published 2017-2021 small-animal residency-program survey exists, but it is historical research rather than a current issuer-wide cohort rate.
If you do not pass, the annual cycle matters again: the next sitting is the following April, and your six-year ceiling continues to run. If you pass, you have cleared one requirement. Phase II, your approved residency completion, your accepted scientific publication, and approved credentials all remain on the path to the full Diplomate credential. For what that credential can lead to professionally, see our overviews of DACVS jobs and the value of DACVS certification.
Key Takeaway
Put three dates in your calendar today: October 30, 2026 (registration closes), January 8, 2027 (USD 795 due), and April 19 or 20, 2027 (exam day for your region). Everything else, including your adviser attestation and test-center booking, should be scheduled around those three anchors.
Frequently Asked Questions
The 2027 Phase I Surgical Knowledge Examination is scheduled for April 19, 2027 in the Americas and Europe, and April 20, 2027 in Asia and Oceania. It is computer-based at Pearson VUE centers.
Registration runs September 16 to October 30, 2026. The USD 795 fee is due separately by January 8, 2027. Always verify against the current ACVS Phase I Information Pamphlet before acting.
Residents may sit at any time during residency, optimally in the second year, and must pass within six years of starting residency. You do not need to complete residency or your publication first, though you must be a resident in good standing with the required adviser and CERT attestations.
The published examination period is seven hours across two equal-time parts, with 125 single-best-answer questions including roughly ten unscored pilot items. You may take one optional scheduled break of up to an hour, during which the clock stops. You cannot return to the first part after the break.
Results are ordinarily released four to six weeks after the examination. Passing Phase I alone does not award the Diplomate credential, since Phase II and other requirements remain.