Home › CFR › Title 33 › Part 8933 CFR Part 89 — Inland Navigation Rules: Implementing RulesSubpart A — Certificate of Alternative Compliance§ 89.1— Definitions.§ 89.3— General.§ 89.5— Application for a Certificate of Alternative Compliance.§ 89.9— Certificate of Alternative Compliance: Contents.§ 89.17— Certificate of Alternative Compliance: Termination.§ 89.18— Record of certification of vessels of special construction or purpose.Subpart B — Waters Upon Which Certain Inland Navigation Rules Apply§ 89.21— Purpose.§ 89.23— Definitions.§ 89.25— Waters upon which Inland Rules 9(a)(ii), 14(d), and 15(b) apply.§ 89.27— Waters upon which Inland Rule 24(j) applies.