To register for the $eedMA 529 college savings plan, you will need information for both the parent account holder and student beneficiary. This includes names, social security numbers, dates of birth, addresses, and contact information. The registration process involves creating an account on the SeedMA website and then being redirected to Fidelity's website to open a U.Fund 529 account. Once registered, account holders can begin contributing savings and receiving statements, emails about college planning, and take advantage of the $eedMA financial literacy resources.