Hi @Linzi Carter,
If you are referring to the CDA with CLASS course, it might have start and end dates depending on which course you're enrolled in. For example, if you are in the course through Kindercare, you have start and end dates for each course, but within those dates you have flexibility around when you need to complete your work. These FAQs should help! If you have any other questions, I recommend contacting the CDA team at CDAsupport@teachstone.com.