What is the term for the special registration period that occurs after the main registration?

The term for the special registration period that occurs after the main registration is often referred to as "Late Registration." This period typically allows individuals who missed the initial registration deadline another opportunity to sign up, albeit often under different conditions, such as a higher fee or limited options. Late registration is commonly seen in various contexts, including educational institutions, sports events, and conferences, facilitating attendance for those who may have encountered obstacles preventing them from registering on time.

Other options do not accurately capture the commonly used terminology for this scenario. For instance, "Final Registration" might imply that this is the last step before closing registration altogether, while "Last Chance" suggests a final opportunity without the formal terminology typical in registration processes. "Extended Registration" suggests a prolonged registration period that might not be occurring specifically after the main registration phase. Therefore, "Late Registration" is the most appropriate term reflecting the context described.