Completion of the Liaison training depends on the liaison's level of knowledge and experience. Veteran liaisons can usually skip to the tests, pass each one, and earn a certificate within an hour or so. New liaisons who need to watch the videos and read the resources in order to pass the tests will require longer - on average, 4-5 hours to complete.
Whether you are a District Liaison or a School Liaison, you will take the same 4-hour training. The requirement to take the training will depend on your district/county/state.
We hope this answers your question! Should you have any questions or if you encounter any issues, please let us know at support@mckinney-vento.org.