What is the Interstate Medical Licensure Compact?
The Interstate Medical Licensure Compact (IMLC) is an agreement among more than 40 states and territories to significantly streamline the licensing process for physicians who want to practice in multiple states by offering an expedited pathway to licensure for qualified professionals. It is managed by the Interstate Medical Licensure Compact Commission, which is made up of representatives from each member state.
Member states may serve as a “state of principal licensure (SPL)" where the medical or osteopathic boards initially license a physician after ensuring the physician meets the qualifications for licensure. The SPL will issue a “letter of qualification,” which is transmitted to the IMLC and allows the physician to apply for and obtain expedited licensure from other member states.
A physician licensed through the compact will receive an unrestricted Pennsylvania medical license, with full practicing privileges and professional responsibilities. Overall, participation in the IMLC allows physicians to receive multiple state licenses much faster and with fewer burdens.
What is the current status of the IMLC in Pennsylvania?
Pennsylvania fully implemented the IMLC on July 7, 2025, and physicians can now apply and designate Pennsylvania as their SPL.
Frequently Asked Questions About the IMLC
For Pennsylvania Physicians
Out-of-state physicians holding a license from an IMLC member state that can serve as a state of principal licensure (SPL) and with a current “letter of qualification” can apply to the IMLC to designate Pennsylvania as a state where the physician wants to practice and apply for expedited licensure from the relevant state licensing board in Pennsylvania.
In addition to holding a current “letter of qualification,” physician applicants will need to demonstrate that they have satisfied two Pennsylvania state licensure requirements before obtaining a license: completing three hours of education in child abuse recognition and reporting, and completing four hours of education relating to pain management and opioid prescribing practices.
For more information about licensure under the IMLC, visit the IMLC’s website.
For Pennsylvania Healthcare Employers
Employers can verify the status of an employee’s license visiting the Pennsylvania Licensing System (PALS).
You can learn more on the IMLC’s About page.