To become a driving instructor, you have to go through a variety of qualifications including a theory, practical, and instructor’s test. Before doing any of this you have to apply to the Driver and Vehicle Standards Agency (DVSA) to become an ADI, or ‘Approved Driving Instructor’. Once doing so you will become a Provisional Driving Instructor (PDI). If you pass all of the tests within two years, then you are a fully licensed driving instructor. Becoming a driving instructor is therefore very similar to applying for a driving license, albeit with more qualifications needed.