Please note - 120 days is the MAXIMUM amount of time your certification can be extended during a re-certification period.
If you are currently on a 30 day extension, and request a 120 day extension, you will only have 90 days added to your extension - However, the 120 day extension is permanent (meaning when you re-certify, you will receive 2 years from your extended expiration date / this is not the case with the free 30 day extension). A credential can be expired for up to 1 year, after which, you will need to retake the exam.
Candidate Status cannot be extended through this form. If you are trying to extend your Candidate Status, please see https://mhacbo.org/en/forms-info/faq/