The MSU VDL is closed only on limited holidays when U.S. Mail and commercial delivery services (UPS, FedEx, DHL) are unavailable. Please keep this in mind when shipping specimens to avoid possible delays and contact us for advice on shipping time- or temperature-sensitive samples around holidays.

*The Clinical Pathology laboratory, located in the Veterinary Medical Center (VMC), will be open from 9:00 a.m. - 3:00 p.m. to support the VMC's Emergency and Critical Care service.

Martin Luther King, Jr. Day

January 19, Monday* | University holiday | Regular hours

Memorial Day

May 25, Monday* | CLOSED

Fourth of July

July 3, Friday* | University holiday | Regular hours

Labor Day

September 7, Monday* | CLOSED

Thanksgiving

November 26, Thursday | CLOSED

November 27, Friday* | University holiday | 8:00 a.m. - 1:00 p.m.

Christmas, MSU Winter Break, and New Year

December 21, Monday | Regular hours

December 22, Tuesday | Regular hours

December 23, Wednesday | Regular hours

December 24, Thursday* | University holiday | 8:00 a.m. - 1:00 p.m.

December 25, Friday | CLOSED


December 28, Monday** | University holiday | 8:00 a.m. - 4:00 p.m.

December 29, Tuesday** | University holiday | 8:00 a.m. - 4:00 p.m.

December 30, Wednesday** | University holiday | 8:00 a.m. - 4:00 p.m.

December 31, Thursday** | University holiday | 8:00 a.m. - 1:00 p.m.

January 1, Friday | CLOSED

**The Clinical Pathology laboratory will be open 9:00 a.m. – 5:00 p.m.


During limited hours on University holidays (11/27, 12/24, 12/28, 12/29, 12/30, 12/31), building access and Client Service telephone lines will be available and our Receiving/Order Entry staff will be working to ensure your incoming specimens are handled promptly and efficiently. Technical staff will be working to ensure minimal impact to test schedules and turnaround time.

Thank you for choosing the MSU VDL for your veterinary diagnostic needs. We wish you healthy and happy holidays!