If you choose to participate in the ABOS WLA, the ABOS recommends that you begin now but you must start by 2027.
You must achieve five Quality Years by 2031. A Quality Year is achieved by correctly answering 24 out of 30 questions.
You must submit your Professional Standing Update, Professional Standing Update Fee, and Case List by December 1, 2032. (You can submit them as early as 2031.) You have until December 31, 2033 to meet the CME/SAE requirements.