Title 4101:4 - Boiler Inspection: Ohio Boiler and Pressure Vessel Rules
- Chapter 4101:4-1 - Definitions and Abbreviations (§§ 4101:4-1-01 — 4101:4-1-02)
- Chapter 4101:4-2 - Administration (§§ 4101:4-2-01 — 4101:4-2-02)
- Chapter 4101:4-3 - Practice and Standards (§§ 4101:4-3-01 — 4101:4-3-40)
- Chapter 4101:4-4 - Specifications (§§ 4101:4-4-01 — 4101:4-4-05)
- Chapter 4101:4-5 - Special Designs (§§ 4101:4-5-01 — 4101:4-5-02)
- Chapter 4101:4-6 - Construction and stamping (§ 4101:4-6-01)
- Chapter 4101:4-7 - Registration and permits (§§ 4101:4-7-01 — 4101:4-7-09)
- Chapter 4101:4-8 - Inspections (§ 4101:4-8-01)
- Chapter 4101:4-9 - Existing vessels (§ 4101:4-9-01)
- Chapter 4101:4-10 - Operators (§ 4101:4-10-01)
- Chapter 4101:4-11 - Low Pressure Boilers (§§ 4101:4-11-01 — 4101:4-11-04)
- Chapter 4101:4-15 - Unfired Pressure Vessels (§§ 4101:4-15-01 — 4101:4-15-06)
- Chapter 4101:4-17 - Repair and Inspection of Unfired Pressure Vessels (§§ 4101:4-17-01 — 4101:4-17-03)