Part 4 - Low Pressure Boilers
- Subpart 4-1 - General Provisions (§§ 4-1.1 — 4-1.16)
- Subpart 4-2 - Certified Boiler Inspectors (§§ 4-2.1 — 4-2.9)
- Subpart 4-3 - Authorized Insurance Companies (§§ 4-3.1 — 4-3.3)
- Subpart 4-4 - Inspection Of Boilers (§§ 4-4.0 — 4-4.5)
- Subpart 4-5 - Specific Requirements For Low Pressure Heating System Boilers (§§ 4-5.1 — 4-5.18)
- Subpart 4-6 - Installations, Repairs And Replacement Of Low Pressure Heating System Boilers (§§ 4-6.1 — 4-6.10)
- Subpart 4-7 - Heat Generating Apparatus-general Provisions (§§ 4-7.1 — 4-7.5)
- Subpart 4-8 - Heat Generating Apparatus-special Provisions (§§ 4-8.1 — 4-8.8)
- Subpart 4-9 - Flame Safeguard Controls For Gas-fired Boilers (§§ 4-9.1 — 4-9.5)
- Subpart 4-10 - General Requirements For Oil Burners (§§ 4-10.1 — 4-10.9)
- Subpart 4-11 - Flame Safeguard Control Requirements For All Oil Burners Installed Before March 31, 1965 (§§ 4-11.1 — 4-11.7)
- Subpart 4-12 - Flame Safeguard Control Requirements For Oil Burners Installed After March 31, 1965 (§§ 4-12.1 — 4-12.8)
- Subpart 4-13 - Special Requirements For Low Pressure Steel Plate Boilers (§§ 4-13.1 — 4-13.4)
- Subpart 4-14 - Special Requirements For Cast-iron Boilers (§§ 4-14.1 — 4-14.4)
- Subpart 4-15 - Hydrostatic Tests (§§ 4-15.1 — 4-15.3)
- Subpart 4-16 - Repealed