The final proposed TERA may or may not contain provisions that differ from the original proposed TERA submitted with the application.
If a final proposed TERA does not differ significantly or materially from the original TERA contained in the complete application, the 270-day review period will begin to run on the date the original complete application was received (under § 224.57(c)) or on the date established by operation of § 224.57(d)).
If a final proposed TERA differs significantly or materially from the original TERA contained in the complete application, the Secretary, with the tribe's consent, may extend the 270-day period for a reasonable time. The Secretary will notify the tribe in writing if an extension of time is necessary.