There is no formal enrollment in the MicroMasters program credential. Instead, you should register for each individual course as your schedule permits. Course enrollments are open to anyone, anywhere with an internet connection.
There are no pre-requisite undergraduate degrees required to enroll*. However, successful learners will most likely have a solid engineering undergraduate preparation or equivalent and some knowledge of basic manufacturing processes. Knowledge of statistics and probability theory--or the ability to learn these concepts quickly--is required.
In order to complete the program credential, you do need to enroll as a verified learner in each of the courses and pass the four virtually-proctored final exams within. Read more about course verification on edX here.
*Note that learners applying to the MIT Master of Engineering in Advanced Manufacturing and Design will still need to meet the usual admission requirements, including appropriate engineering undergraduate degree and preparation.