The American College of Theriogenologists (ACT) certifies veterinarians in theriogenology, the AVMA-recognized specialty for animal reproduction, and AVMA's list names no sub-specialties under it.
The standard path is a minimum of one year of clinical practice followed by a minimum of two additional years in an ACT-approved residency program, with mentorship and graduate degree routes beside it.
AVMA counts 609 active ACT diplomates as of December 31, 2025.
Active diplomates (AVMA)
609
AVMA-recognized specialties
One
Recognition
Recognized
Diplomate count: AVMA, “Veterinary specialists in the U.S.,” active board-certified diplomates as of December 31, 2025. Some veterinarians belong to more than one specialty.
Confirm every requirement with the college
American College of Theriogenologists (ACT) is on AVMA’s list of AVMA-recognized veterinary specialty organizations.
Diplomate title: Diplomate of the American College of Theriogenologists
Before training
ACT Diplomate candidates must be a graduate of an AVMA-accredited veterinary school (or hold an ECFVG/PAVE certificate) or be legally qualified to practice veterinary medicine in some state, province, territory or country.
“Be a graduate of a college or school of veterinary medicine accredited by the AVMA, or possess a certificate issued by either the Educational Commission for Foreign Veterinary Graduates (ECFVG) or the Program for the Assessment of Veterinary Educational Equivalence (PAVE) OR be legally qualified to practice veterinary medicine in some state, province, territory, or possession of the United States, Canada or another country.”
Diplomate Requirements - American College of TheriogenologistsTraining program
The Residency (Standard) Route requires a minimum of one year of clinical practice followed by a minimum of two additional years of training in an ACT-approved residency program.
“Minimum of one (1) year of clinical practice followed by a minimum of two (2) additional years training in an ACT-approved residency program.”
Diplomate Requirements - American College of TheriogenologistsOther routes
The Mentorship/Alternate Route requires a minimum of six years post-graduate experience with a major emphasis in theriogenology, including at least 104 weeks in an ACT-approved, mentored training program.
“Candidates must have a minimum of six (6) years post-graduate (DVM or equivalent) experience with a major emphasis in Theriogenology including completion of a minimum of 104 weeks in an ACT-approved, mentored training program.”
Diplomate Requirements - American College of TheriogenologistsOther routes
The Graduate Degree Training Route requires a minimum of three years post-DVM experience plus an MSc, or one year post-DVM experience plus a PhD.
“Candidates must have a minimum of three (3) years post-DVM experience in addition to MSc degree, or a minimum of one (1) year post-DVM experience in addition to PhD degree.”
Diplomate Requirements - American College of TheriogenologistsApplication, deadlines and fees
ACT program registration carries a $250 registration fee, assessed as part of the application.
“A registration fee of $250 will be assessed as part of the application.”
Diplomate Requirements - American College of TheriogenologistsCertifying exam
The 2027 ACT Certifying Examination is scheduled for July 13 through July 14, 2027.
“Tuesday, July 13th through Wednesday, July 14th, 2027”
Diplomate Requirements - American College of TheriogenologistsCertifying exam
The deadline for approved candidates to register for the ACT exam each year is April 15.
“The deadline for approved candidates to register for the exam each year is April 15.”
Diplomate Requirements - American College of TheriogenologistsKeeping the credential
ACT Diplomates who achieved status in 2016 or after must maintain certification every 10 years or forfeit their ACT Diplomate status.
“All Diplomates of the American College of Theriogenologists (ACT) who achieved Diplomate status in 2016 or after are required to Maintain Certification every 10 years, or they will forfeit ACT Diplomate status and no longer be eligible to claim ACT Diplomate certification.”
Maintenance of Certification - American College of TheriogenologistsEach point is summarised from ACT’s own published pages and candidate documents, as retrieved on the dates listed under Sources. Open “the college’s wording” for the exact text and its source.
The American College of Theriogenologists certifies veterinarians in theriogenology, which its own materials frame as veterinary reproduction — its diplomates are reproductive specialists.
Theriogenology is an AVMA-recognized veterinary specialty, and AVMA's list names no sub-specialties under the college.
The credential is Diplomate of the American College of Theriogenologists.
AVMA counts 609 active ACT diplomates as of December 31, 2025, and the college describes its diplomates' post-graduate training as the groundwork for the certification examination that confers Diplomate status.
ACT's residency route — the college calls it the Standard or Traditional Training Route — starts from a prerequisite: candidates must be a graduate of an AVMA-accredited veterinary school, hold an ECFVG or PAVE certificate, or be legally qualified to practice veterinary medicine in some state, province, territory or country.
The route itself is a minimum of one year of clinical practice followed by a minimum of two additional years of training in an ACT-approved residency program.
Both figures are minimums the college states, so the realistic planning figure is at least three years of post-DVM commitment before the certifying examination.
The Mentorship/Alternate Route asks for a minimum of six years of post-graduate experience with a major emphasis in theriogenology, including at least 104 weeks in an ACT-approved, mentored training program — built for veterinarians whose day-to-day work is already reproduction-heavy.
The Graduate Degree Training Route pairs post-DVM experience with a graduate degree: a minimum of three years plus an MSc, or a minimum of one year plus a PhD — and that pairing is not the whole route.
The college's route description adds a plan-of-study step: trainees submit a plan of study for review before beginning a mentored study program.
ACT says the experience may include clinical practice, teaching or research, but not activities performed while enrolled in the graduate program, which points the route at veterinary academics and research careers.
Both routes lead to the same certification examination and the same diplomate status as the residency route.
Registration happens at the start: ACT program registration carries a $250 registration fee, assessed as part of the application.
The certifying examination is a fixed date on the calendar — the 2027 exam runs Tuesday, July 13 through Wednesday, July 14, 2027, and the deadline for approved candidates to register each year is April 15.
Passing it leads to Diplomate status.
Certification then has to be kept: diplomates who achieved status in 2016 or after must maintain certification every 10 years or forfeit their ACT Diplomate status and can no longer claim it.
Pay for ACT diplomates
A minimum of one year of clinical practice followed by a minimum of two additional years training in an ACT-approved residency program.
Stacked, those minimums mean at least three years of post-DVM time before the certifying examination, and ACT states both figures as minimums rather than fixed program lengths, so individual programs can run longer.
Yes.
The Mentorship/Alternate Route takes a minimum of six years of post-graduate experience with a major emphasis in theriogenology, including at least 104 weeks in an ACT-approved, mentored training program.
The Graduate Degree Training Route takes a minimum of three years of post-DVM experience plus an MSc, or one year plus a PhD — and its requirements go beyond the degree and the experience: the college's route description also has trainees submit a plan of study before beginning a mentored study program.
Both lead to the same certifying examination.
A minimum of six years of post-graduate (DVM or equivalent) experience with a major emphasis in theriogenology, including completion of a minimum of 104 weeks in an ACT-approved, mentored training program.
It is the route for veterinarians whose practice already centers on reproduction, and it ends at the same certification examination and diplomate status as the residency route.
For diplomates who achieved status in 2016 or after, yes: they are required to maintain certification every 10 years, or they forfeit ACT Diplomate status and are no longer eligible to claim it.
The college's Maintenance of Certification page carries the policies and procedures, and each diplomate is responsible for keeping certification current.
The 2027 ACT Certifying Examination runs Tuesday, July 13 through Wednesday, July 14, 2027.
The deadline for approved candidates to register for the exam each year is April 15, so candidates completing a training route should plan their registration around that date.
Program registration itself carries a $250 fee assessed as part of the application.
Sources
Organization list: AVMA ABVS; diplomate counts: AVMA; both retrieved 2026-09-23. Page last updated 2026-09-23.