42 CFR 137.137 : Public Health (Part 1 To Parts 1009-1099) — (Part 1 To Chapters Ii-Iii) — Public Health Service, Department Of Health And Human Services (Part 1 To Parts 138-199) — Indian Health Service, Department Of Health And Human Services (§ 136.1 To Parts 138-199) — Tribal Self-Governance (§ 137.1 To § 137.450) — Final Offer (§ 137.130 To § 137.155) — If the 45 day review period or extension thereto, has expired, and the Tribes offer is deemed accepted by operation of law, are there any exceptions to this rule?