In Massachusetts there is a requirement that you take at least 21 hours of your class when an instructor is available for real-time interaction. You cannot count more than 19 hours of asynchronous on demand classes towards your 40 hour course requirement.
This means that you can't take the class entirely on your own without a live instructor present under the State licensing regulations. Sorry, that's State law! No asynchronous progress past 19 hours of asynchronous time counts towards your course completion or licensing requirement. This limit is automatically tracked and limited on your account, and any time past 19 hours will need to be taken with a live instructor.
You may use asynchronous classes to study for your license exam after you fully complete the course, but any time past the state-mandated 19 hour limit will not count towards your course completion requirements.