The Interim Agreement is not a waiver. It is a contract that includes all terms and conditions for producers looking to employ SAG-AFTRA members on their specific independent productions.
The union thoroughly vets and approves each and every project seeking an Interim Agreement. Regardless of the size of the budget or the renown of the cast, these projects have been confirmed to be separate from the AMPTP and entirely independent, except for in extraordinary circumstances mandated by legal considerations. It is important to note that the terms of the Interim Agreement have been designed to reflect the terms currently being bargained for in negotiations. The independent producers must agree to all of the terms, without exception.
You can find out more, including how to apply for the Interim Agreement, by going here.