Most schools have no policies listed on their websites
Just a brief sampling of what a few schools say about age of coursework
Columbia
Application Requirements
Please note: All prerequisite courses must have been completed within 10 years of application. We prefer that prerequisite courses in biology be taken within five years of application.
WCMC (Cornell)
Selection Criteria & Requirements | Medical College
Validity of Courses
To fulfill an admissions requirement, courses must have been satisfactorily completed within 10 years of application. We recommend that one or more advanced science course(s) be completed within five years of application. All required premedical coursework should be completed by January 31 of the year for which admission is sought.
UNC
General Requirements | Office of Admissions
Typically, the prerequisite courses are taken during an undergraduate, post baccalaureate (after college), or graduate degree program. Your grades must be documented in
letter-grade format on your transcript and not pass/fail. There is a five-year limit on prerequisite coursework. We begin calculating the elapsed time from the
YEAR you graduated from the given program, not the year the course was taken.
Example for clarification
Program completion year (undergrad, post baccalaureate, or graduate) | AMCAS cycle begins in May of | Year of matriculation into medical school | Course work valid |
2015 | 2020 | 2021 | Yes |
2015 | 2021 | 2022 | No |
If you
are not within the five (5) year limit then you are required to complete one of the choices below
before applying to our medical school:
Demonstrate current mastery in the
natural sciences by satisfactorily
completing a graduate science program in the
natural sciences prior to applying – OR –
Complete 30 credit hours of post baccalaureate coursework in biology, chemistry, physics, mathematics, etc. to demonstrate mastery within the natural sciences.
Einstein
Course Requirements | M.D. Admissions | Albert Einstein College of Medicine
Course Work Older than Five Years
Applicants who have completed all of their pre-medical course requirements five years prior to the time of application must show evidence of participation in either academic or work experience in the biological sciences. Academic experience should include at least one course in a discipline such as cell biology, molecular biology, genetics, immunology or neuroscience. Work experience may include research in the biological or physical sciences or clinical investigation.
UC Davis
Admissions requirements | UC Davis School of Medicine
Prerequisite courses are recommended to be completed within 5 years and must be completed by spring of the year intending to enroll.