Home › CFR › Title 49 › Part 22449 CFR Part 224 — Reflectorization of Rail Freight Rolling Stock§ 224.105— Sheeting dimensions and quantity.§ 224.106— Location of retroreflective sheeting.§ 224.109— Inspection and replacement of missing, damaged, or obscured retroreflective sheeting.§ 224.111— Evaluation and replacement of 10-year-old or underperforming retroreflective sheeting.Subpart A — General§ 224.1— Purpose and scope.§ 224.3— Applicability.§ 224.5— Definitions.§ 224.7— Waivers.§ 224.9— Responsibility for compliance.§ 224.11— Penalties.§ 224.13— Preemptive effect.§ 224.15— Special approval procedures.Subpart B — Application, Inspection, and Maintenance of Retroreflective Material§ 224.101— General requirements.§ 224.103— Characteristics of retroreflective sheeting.