Last Updated: October 2026
Yes, an applicant may elect to use its designated replacement string by submitting its Registration String Attestation in TAMS as long as the replacement string does not create or expand a contention set. The decision to proceed with a replacement string during the replacement period is at the applicant's sole discretion, based on their own assessment. Applicants will not be required to provide a rationale for why they did or did not opt to switch their original applied-for string to their replacement string.