This is one of the most common questions that students ask. However, it is not a mandate to be exact. It is a voluntary decision for any yoga school, to register or not. Yoga Alliance is basically a private and non-profit organization, created sometime in 1999-2000. It mainly acts as a standard for yoga education. The organization has a set criterion that schools registered under it, need to follow. After completing a Yoga Alliance course, you can apply for the Registered Yoga Teacher training certification. Moreover, it offers a global platform to the students that helps in attending courses and workshops, almost free of cost.