Letter for a Prelim or Transferring Resident
Letter of recommendation for a preliminary-year or transferring resident: what the ACGME counts as a transfer, what to evidence, and a constructed letter.
Letter for a Prelim or Transferring Resident
A letter for a preliminary-year resident seeking a categorical spot, or for a resident changing programs, has one job: tell the new program this resident is ready to start at the next level in its specialty, with evidence from this year, and say why the resident is moving. The ACGME counts both moves as transfers, and the new program must obtain a summative evaluation of the resident before it accepts them.
That second fact changes what the letter is for. The letter is not the transfer paperwork. Before the new program can accept the resident, it must obtain "verification of previous educational experiences and a summative competency-based performance evaluation." Your letter is read beside that evaluation, so it has to agree with it and add what a form cannot: a plain reason for the move and the specialty-specific evidence the new program director will look for. Applicant-side rules for the same positions are in the supplemental rank order list guide, and every residency letter guide sits in our medical school and residency essays hub.
Every ACGME and NRMP document quoted below was checked on November 7, 2026. AAMC's ERAS pages refused our automated request that day (HTTP 403), so this page does not quote ERAS letter rules for residents; read the ERAS letters chapter before you upload.
What the ACGME counts as a transfer
The ACGME's Glossary of Terms (June 17, 2026) says residents are transfer residents when "moving from one program to another within the same or between different Sponsoring Institution(s) and within the same or a different specialty; when entering a program requiring a preliminary year at the PGY-2 level, even if the resident was simultaneously accepted into the preliminary PGY-1 program and the PGY-2 program as part of the National Resident Matching Program Match (e.g., accepted to both programs right out of medical school)." It adds: "The term does not apply to a resident who has successfully completed a residency and then is accepted into a subsequent residency or fellowship program."
The 2026 Common Program Requirements (Residency) then set two duties for the receiving program:
3.5. Resident Transfers The program must obtain verification of previous educational experiences and a summative competency-based performance evaluation prior to acceptance of a transferring resident. (Core)
3.6. Prior to accepting a transfer resident, the program must obtain from the resident, and retain written confirmation that the resident understands the impact of the transfer on their eligibility for their intended specialty board's initial certification. (Core)
| Resident's move | Transfer under the ACGME glossary? | The glossary words that decide it |
|---|---|---|
| Prelim PGY-1 to an advanced PGY-2 they already matched to | Yes | "even if the resident was simultaneously accepted" into both |
| Prelim PGY-1 to a categorical PGY-2 in a new program | Yes | "moving from one program to another" |
| Mid-residency move, same or different specialty | Yes | "within the same or a different specialty" |
| Completed residency, starting a fellowship | No | "successfully completed a residency"; see the program director letter for fellowship |
For every "Yes" row, sections 3.5 and 3.6 apply: the new program obtains the summative evaluation and verification of training, and the resident's written confirmation about board eligibility.
Where the PGY-2 positions come from
The NRMP's 2027 Match Participation Agreement, section 7.1, defines two position types a prelim resident may seek through the Match: "Advanced Position (“A”): Positions in specialty programs that begin the year after the Match and after one or more years of required preliminary training," and "Reserved Positions (“R”): PGY-2 positions in specialty programs that begin in the year of the Match and are reserved for physicians with prior graduate medical education." It also defines the year your resident is in now: "Preliminary Positions (“P”): One-year positions in transitional or specialty programs."
Positions a program fills outside the Match follow that program's own process. Either way, the reader is a program director deciding whether this resident can join a PGY-2 class in July.
Why is the resident leaving? Say it
Our view: put the reason in one plain sentence in the first paragraph. "Dr. Castellano completed a preliminary year in our surgery program, which has no categorical positions open for PGY-2" is a full answer. A letter that never says why invites the reader to guess, and the worst guess is a problem in the current program.
The basis is the record the resident carries. The residency requirements say "At least annually, there must be a summative evaluation of each resident that includes their readiness to progress to the next year of the program" (5.1.f), and "The evaluations of a resident’s performance must be accessible for review by the resident" (5.1.g). The new program sees the summative evaluation. A letter that implies a different story from that evaluation fails at the first comparison.
The countercase: when the reason is personal, such as a partner's job or a family illness, the resident decides how much is said. Write "for family reasons, with our full support" if the resident agrees, and leave the details out.
What to evidence from this year
The new program director wants to know whether the resident can start at the next level in their specialty. Our recommendation, by the move the resident is making:
| Resident's target | Evidence that answers the reader |
|---|---|
| Categorical surgery PGY-2 after prelim surgery | Cases and their level of participation, floor and call responsibility, how the resident handled a deteriorating patient |
| Advanced anesthesiology, radiology, neurology or similar after prelim medicine | Ward and ICU judgment, cross-cover nights, reliability; the specialty program wants a safe physician first |
| Same specialty, different program | Your program's rank of the resident within the class, and the reason for the move |
| Different specialty mid-residency | What this year showed that fits the new specialty, said by the person who saw it |
Constructed example: the letter that says nothing about the move
Constructed example, written by us, not a real recommendation letter. Context (invented): Dr. T. Okonkwo directs a general surgery residency. Dr. Mira Castellano is a preliminary PGY-1 seeking a categorical PGY-2 position elsewhere.
Dr. Castellano has been a pleasure to work with this year. She is hardworking and dependable and always willing to help. I am happy to recommend her for a categorical position.
It gives no reason for the move, no level, and "happy to recommend" is a weak verdict for the person who knows her training best.
Constructed example: the revised letter
Constructed example, written by us, not a real recommendation letter. Same invented writer and resident.
Dear Program Director,
I am the program director of the general surgery residency at [Hospital name]. Dr. Mira Castellano has trained with us as a preliminary PGY-1 since July 2026. Our program has no categorical PGY-2 position for her next year, and I am writing to support her application for one.
Dr. Castellano works at the level of our categorical interns, and above it on call. In January she was the night intern when a post-operative patient became hypotensive. She examined the patient, started fluids, sent the labs and called the senior resident within ten minutes, with a working diagnosis of bleeding that proved correct. The patient went back to the operating room that night.
On the floor she carries up to 12 patients and runs the morning list before rounds. In the operating room she has closed fascia and skin under supervision on the general and trauma services, and our attendings now let her open and close routine laparoscopic cases with the chief resident.
She is the first intern our nurses call. When a mid-year review noted that her sign-outs left out pending results, she rebuilt the team's template and the night team now uses it.
Her summative evaluations this year rank her second of our 10 PGY-1 residents, categorical and preliminary together. She has had no remediation or leave.
I recommend Dr. Castellano without reservation for a categorical PGY-2 position in general surgery. If we had a position, we would offer it to her.
Sincerely, T. Okonkwo, MD, Program Director, General Surgery Residency, [Hospital name]
The body, from "I am the program director" to "offer it to her", is 243 words. The reason for the move is in the first paragraph. The night-call incident gives a situation, her actions and the result. The class comparison uses the same population as the summative evaluation. The closing names the position she is ready for.
Transfer letter checklist
- Read the resident's latest summative evaluation before you write.
- State your role, the training dates and the resident's current level.
- Give the reason for the move in one sentence, agreed with the resident.
- Add one patient-care incident and one autonomy statement from this year.
- Compare the resident with a named group: "our 10 PGY-1 residents".
- Write one record sentence: remediation or leave, or "none".
- Close with the position and specialty you recommend the resident for.
Questions about letters for prelim and transferring residents
Does a preliminary-year resident count as a transfer?
Yes, when they enter a PGY-2. The ACGME glossary includes residents "entering a program requiring a preliminary year at the PGY-2 level, even if the resident was simultaneously accepted into the preliminary PGY-1 program and the PGY-2 program".
Is my letter the summative evaluation the ACGME asks for?
No. Section 3.5 asks for "a summative competency-based performance evaluation" and verification of training. Those come from the program director's records. Your letter is a separate document read beside them.
Should a faculty member other than the PD write?
Yes, as well as the PD, if they supervised the resident closely. A letter from the attending on the resident's hardest rotation adds patient-care detail that a PD letter summarizes.
What if the resident is leaving after a problem?
State the facts the summative evaluation records, in one sentence, and what has changed since. Do not write a letter you cannot sign as accurate.
Get a free review of the letter
Get a free Quick Review of the letter against GradPilot's residency letter of recommendation rubric. For a transfer letter it checks that your role and the training dates come first, that each claim rests on a patient-care incident with the resident's own action, and that the closing names the position you recommend. If the resident also needs a new personal statement, the residency personal statement review covers that document.
More residency letter guides:
- Program director letter for fellowship: the PD's letter when the resident finishes, with a constructed sample.
- Residency letters for SOAP and off-cycle applicants: Match Week timing and off-cycle vacancies.
- Residency letter of recommendation sample: an attending's letter for a medical student.
- ERAS letters of recommendation: how a resident's letter set reads to programs.
Sources
Retrieved November 7, 2026, except where noted.
- Accreditation Council for Graduate Medical Education, Glossary of Terms (June 17, 2026): definition of transfer resident.
- Accreditation Council for Graduate Medical Education, Common Program Requirements (Residency) (effective July 1, 2026), sections 3.5, 3.6, 5.1.f and 5.1.g: transfer verification, board-eligibility confirmation, summative evaluations, resident access.
- National Resident Matching Program, 2027 Match Participation Agreement for Applicants (2027 Main Residency Match), section 7.1: preliminary, advanced and reserved positions.
- Not retrieved: AAMC, ERAS letters of recommendation chapter (HTTP 403 to our request on November 7, 2026); no ERAS rule is quoted on this page.
Review the Letter Before It Is Submitted
See how the letter reads against the rubric for its destination.