# Program Requirements PhD students are required to meet key program milestones, register for all required courses, and complete all general program requirements to ensure timely completion of the degree. The maximum time limit for completing all PhD degree requirements is seven years after matriculation in the PhD Program. Students can review [a detailed roadmap of all essential milestones ](https://gradschool.mssm.edu/phd-roadmap/)for the PhD program. Students who do not meet program deadlines will be subject to disciplinary action, up to and including academic probation and expulsion. ### Key PhD Milestones/Deadlines ![](/files/QUlyTLwyoJ60Jgm01taj) **See** [**Standards for Maintaining Satisfactory Progress**](/graduate-student-handbook/chapter-1-1/phd-in-biomedical-sciences-and-neuroscience/program-requirements/standards-for-maintaining-satisfactory-progress.md) --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://ismms-gs.gitbook.io/graduate-student-handbook/chapter-1-1/phd-in-biomedical-sciences-and-neuroscience/program-requirements.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.