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Chapter 31F — MARINE OIL TERMINALS

Section 3110F — MECHANICAL AND ELECTRICAL EQUIPMENT

2025 California Building Code (Title 24, Part 2) · 2025 edition · updated 2026-07-27 · California

Italicized text is a California amendment to the model code, as printed in the official publication.

3110F.1 General.

This section provides the minimum standards for mechanical and electrical equipment at MOTs.

See Section 3101F.3 for definitions of “new” (N) and “existing” (E).

3110F.2 Marine loading arms.

3110F.2.1 General criteria. Marine loading arms and ancillary systems shall conform to ASME B31.3 [10.1], 33 CFR 154.510 [10.2] and OCIMF “Design and Construction Specification for Marine Loading Arms” [10.3]. Each loading arm used for transferring oil shall have a means of being drained or closed before being disconnected.

The following shall be considered when determining the loading arm maximum allowable extension limits:

1. Vessel sizes and manifold locations

2. Lowest-low water level (datum)

3. Highest-high water level 4. Maximum vessel surge and sway 5. Maximum width of fendering system

For each loading arm, the maximum allowable movement envelope limits shall comply with 2 CCR 2380 [10.4].

Loading arms and ancillary systems shall have a seismic assessment in accordance with Section 3104F.5. For seismic evaluation, design and strengthening of loading arms and ancillary equipment, seismic loads shall be computed per Section 3104F.5.4.1 and the procedure in Section 8.5.3 of ASCE/COPRI 61 [10.5] . For strength evaluation of supports and attachments, see Section 3107F.7.

3110F.2.2 Electrical and hydraulic power systems.

3110F.2.2.1 Pressure and control systems (N). 1. Pressure gauges shall be mounted in accordance with ASME B40.100 [10.6]. 2. The hydraulic drive cylinders shall be mounted and meet either the mounting requirements of NFPA T3.6.7 R3 [10.7] or equivalent. 3. In high velocity current (>1.5 knots) areas, all new marine loading arms shall be fitted with quick disconnect couplers and emergency quick release systems in conformance with Sections 6.0 and 7.0 of [10.3]. In complying with this requirement, attention shall be paid to the commentary and guidelines in Part III of reference [10.3]. 4. Out-of-limit, balance and the approach of out-of-limit alarms shall be located at or near the loading arm console.

3110F.2.2.2 Electrical components (N). The following criteria shall be implemented: 1. Equipment shall be provided with a safety disconnecting device to isolate the entire electrical system from the electrical mains in accordance with Article 430 of the California Electrical Code [10.8].

2. Motor controllers and 3-pole motor overload protection shall be installed and sized in accordance with Article 430 of the California Electrical Code [10.8].

3. Control circuits shall be limited to 120 volts and shall comply with Articles 500 and 501 of the California Electrical Code

[10.8]. Alternatively, intrinsically safe wiring and controls may be provided in accordance with Article 504 of the Califor- nia Electrical Code [10.8] and UL Std. No. 913 [10.9].

4. Grounding and bonding shall comply with the requirements of Article 430 of the California Electrical Code [10.8] and Section 3111F.

Section 3111F includes requirements for electrical equipment, wiring, cables, controls and electrical auxiliaries located in hazardous areas.

3110F.2.2.3 Remote operation. The remote control system, where provided, shall conform to the recommendations of the OCIMF

[10.3]. The remote operation shall be facilitated by either a pendant control system or by a hand-held radio controller (N).

The pendant control system shall be equipped with a plug-in capability to an active connector located either in the vicinity of the loading arms, or at the loading arm outboard end on the triple swivel, and hard-wired into the control console. The umbilical cord running from the triple swivel to the control console shall be attached to the loading arm. Other umbilical cords shall have sufficient length to reach the maximum operational limits (N).

The radio controller if installed shall comply with 2 CCR 2370 [10.4] and 47 CFR Part 15 [10.10] requirements for transmitters operating in an industrial environment (N/E).

3110F.3 Oil transfer hoses (N/E).

Hoses for oil transfer service shall be in compliance with 2 CCR 2380 [10.4] and 33 CFR 154.500 [10.11].

Hoses with nominal diameters of 6 inches or larger shall have flanges that meet ASME B16.5 [10.12], or hoses with nominal diameters of 6 inches or less may have quick disconnect fittings provided that they meet ASTM F1122 [10.13].

The minimum hose length shall safely accommodate the vessel’s size and maximum movements during transfer operations and mooring (see Section 3105F.2).

3110F.4 Lifting equipment: winches and cranes.

Lifting equipment for oil service activities, other activities (if operation or failure could cause an oil release) or spill response, shall conform to the provisions in Sections 3110F.4.1 and 3110F.4.2.

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MARINE OIL TERMINALS

Lifting equipment inspection and maintenance shall conform to ASME B30.4 [10.14], ASME B30.7 [10.15] and ASME HST-4 [10.16], as applicable. Inspections by qualified personnel shall be performed annually. Inspection and maintenance records shall be retained.

3110F.4.1 Winches.

1. Winches and ancillary equipment shall be suitable for a marine environment (N/E). 2. Winches shall be provided with a fail-safe braking system, capable of holding the load under all conditions, including a power failure (N/E). 3. Winches shall be fully reversible (N). 4. Shock, transient and abnormal loads shall be considered when selecting winch systems (N). 5. Winches shall have limit switches and automatic trip devices to prevent over-travel of the drum in either direction. Limit switches shall be tested and demonstrated to function correctly under operating conditions without inducing undue tensions or slack in the winch cables (N/E). 6. Under all operating conditions, there shall be at least two full turns of cable on grooved drums, and at least three full turns on ungrooved drums (N/E). 7. Moving winch parts which present caught-in hazards to personnel shall be guarded (N/E). 8. Winches shall have clearly identifiable and readily accessible stop controls (N/E).

3110F.4.2 Cranes (N/E). 1. Cranes shall not be loaded in excess of the manufacturer’s rating except during performance tests. 2. Drums on load-hoisting equipment shall be equipped with positive holding devices. 3. Under all operating conditions, there shall be at least two full turns of cable on grooved drums, and at least three full turns on ungrooved drums. 4. Braking equipment shall be capable of stopping, lowering and holding a load of at least the full test load. 5. When not in use, crane booms shall be lowered to ground level or secured to a rest support against displacement by wind loads or other outside forces.

6. Safety systems including devices that affect the safe lifting and handling, such as interlocks, limit switches, load/moment and overload indicators with shutdown capability [10.17], emergency stop switches, radius and locking indicators, shall be provided.

3110F.5 Shore-to-vessel access for personnel.

This section applies to shore-to-vessel means of access for personnel and equipment provided by the terminal. This includes ancillary structures and equipment, which support, supplement, deploy and maneuver such vessel access systems.

Shore-to-vessel access for personnel shall conform to 29 CFR 1918.22 [10.18], Sections 19.B and 21.E of USACE EM 385-1-1 [10.19], Chapter 16.4 of ISGOTT [10.20] and the following: 1. Shore-to-vessel access systems shall be designed to withstand the forces from dead, live, wind, vibration, impact loads and the appropriate combination of these loads. The design shall consider all the critical positions of the system in the stored, mainte- nance, maneuvering and deployed positions, where applicable (N). 2. The minimum live load shall be 50 psf on walkways and 25 plf with a 200 pounds minimum concentrated load in any location or direction on handrails (N). 3. The walkway shall be not less than 36 inches in width (N) and not less than 20 inches for existing walkways (E). 4. The shore-to-vessel access system shall be positioned so as to not interfere with the safe passage or evacuation of personnel (N/E).

5. Guardrails shall be provided on both sides of the access systems with a clearance between the inner most surfaces of the guardrails of not less than 36 inches and shall be maintained for the full length of the walkway (N). 6. Guardrails shall be at a height not less than 33 inches above the walkway surface and shall include an intermediate rail located midway between the walkway surface and the top rail (N/E). 7. The walkway surface, including self-leveling treads, if so equipped, shall be finished with a safe nonslip footing accommodat- ing all operating gangway inclinations (N/E). 8. The undersides of aluminum gangways shall be protected with hard plastic or wooden strips to prevent being dragged or rubbed across any steel deck or component (N/E).

3110F.6 Oil sumps and ancillary equipment.

Oil sumps and ancillary equipment shall conform to the following: 1. Sumps for oil drainage shall be equipped with pressure/vacuum vents, automatic draining pumps and shall be tightly covered (N/E). 2. Sumps which provide drainage for more than one berth should be equipped with liquid seals so that a fire on one berth does not spread via the sump (N/E). 3. Sumps shall be located at least 25 ft from the manifolds, base of the loading arms or hose towers (N). 4. Conduct periodic integrity testing of the sump containers and periodic integrity and leak testing of the related valves and piping.

31F-88 2025 CALIFORNIA BUILDING CODE

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MARINE OIL TERMINALS

3110F.7 Vapor control systems.

Vapor control systems shall conform to 33 CFR 154.2000 through 154.2181 [10.21] and API Standard 2610 [10.22]. The effects of seismic, wind, dead, live and other loads shall be considered in the analysis and design of individual tie- downs of components, such as of steel skirt, vessels, controls and detonation arresters.

3110F.8 Spill prevention equipment and systems maintenance (N/E).

Mechanical and electrical equipment critical to oil spill preven- tion and safety, such as, but not limited to: mooring line quick release and loading arm quick disconnect systems, shall be maintained and tested as per the manufacturer’s recommendations (N/E). The latest records shall be readily accessible to the Division (N/E).

3110F.9 Pumps (N/E).

Specification information for all MOT pumps providing oil and fire water service to wharf pipeline systems shall be retained. Information shall include, but not be limited to, pump make and model, motor make and model, flow rate, pressure rating and pump performance curves.

Hydrocarbon pumps that serve the oil transfer operations at the berthing system must be maintained per API Standard 2610 [10.22]. Firewater pumps providing the wharf fire protection shall be maintained in accordance with Section 3108F.6.3.

3110F.10 Mechanical and electrical equipment seismic assessment (N/E) .

Mechanical and electrical equipment shall have a seismic_ assessment per Section 3104F.5. For strength evaluation of supports and attachments, see Section 3107F.7.

3110F.11 References.

[10.1] American Society of Mechanical Engineers (ASME), 2015, ASME B31.3-2014 (ASME B31.3), “Process Piping,” New York.

[10.2] Code of Federal Regulations (CFR), Title 33, Section 154.510 – Loading Arms (33 CFR 154.510)

[10.3] Oil Companies International Marine Forum (OCIMF), 1999, “Design and Construction Specification for Marine Loading Arms,” 3rd ed., Witherby, London.

[10.4] California Code of Regulations (CCR), Title 2, Division 3, Chapter 1, Article 5 – Marine Terminals Inspection and Monitoring (2 CCR 2300 et seq.)

[10.5] American Society of Civil Engineers (ASCE), 2014, ASCE/COPRI 61-14 (ASCE/COPRI 61), “Seismic Design of Piers and Wharves”, Reston, VA.

[10.6] American Society of Mechanical Engineers (ASME), 2013, ASME B40.100-2013 (ASME B40.100), “Pressure Gauges and Gauge Attachments,” New York.

[10.7] National Fluid Power Association (NFPA), 2009, NFPA T3.6.7 R3-2009 (R2017) (NFPA T3.6.7 R3), “Fluid Power Systems and Products —Square Head Industrial Cylinders - Mounting Dimensions,” Milwaukee, WI.

[10.8] California Code of Regulations (CCR), Title 24, Part 3, California Electrical Code.

[10.9] Underwriters Laboratory, Inc., 2013, UL Standard No. 913, “Standard for Intrinsically Safe Apparatus and Associated Appa- ratus for Use in Class I, II, III, Division 1, Hazardous (Classified) Locations,” 8th ed., Northbrook, IL.

[10.10] Code of Federal Regulations (CFR), Title 47, Part 15 – Radio Frequency Devices (47 CFR 15)

[10.11] Code of Federal Regulations (CFR), Title 33, Section 154.500 – Hose Assemblies (33 CFR 154.500)

[10.12] American Society of Mechanical Engineers (ASME), 2013, ASME B16.5-2013 (ASME B16.5), “Pipe Flanges and Flanged Fittings,” 13th ed., New York.

[10.13] American Society for Testing and Materials (ASTM), 2010, ASTM F1122-04(2010) (ASTM F1122), “Standard Specification for Quick Disconnect Couplings (6 in. NPS and Smaller),” 4th ed., West Conshohocken, PA.

[10.14] American Society of Mechanical Engineers (ASME), 2010, ASME B30.4-2010 (ASME B30.4), “Portal Tower and Pedestal Cranes,” 10th ed., New York.

[10.15] American Society of Mechanical Engineers (ASME), 2011, ASME B30.7-2011 (ASME B30.7), “Winches,” 11th ed., New York.

[10.16] American Society of Mechanical Engineers (ASME) 1999, ASME HST-1999 (R2010) (ASME HST-4), “Performance Standard for Overhead Electric Wire Rope Hoists,” New York.

[10.17] Code of Federal Regulations (CFR), Title 29, Section 1917.46 – Load Indicating Devices (29 CFR 1917.46)

[10.18] Code of Federal Regulations (CFR), Title 29, Section 1918.22 – Gangways (29 CFR 1918.22)

[10.19] US Army Corps of Engineers (USACE), 2008 (05 Jul 11), EM 385-1-1, “Safety and Health Requirements Manual, Sections 19.B and 21.E, Washington, D.C.

[10.20] International Chamber of Shipping (ICS), Oil Companies International Marine Forum (OCIMF), International Association of Ports and Harbors (IAPH), 2010, “International Safety Guide for Oil Tankers and Terminals (ISGOTT),” 5th ed., Witherby, London.

[10.21] Code of Federal Regulations (CFR), Title 33, Sections 154.2000 through 154.2250 – Vapor Control Systems (33 CFR 154.2000 et. seq.)

[10.22] American Petroleum Institute (API), 2005, API Standard 2610 (R2010), “Design, Construction, Operation, Maintenance, and Inspection of Terminal and Tank Facilities,” 2nd ed., Washington, D.C.

Authority: Sections 8750 through 8760, Public Resources Code.

Reference: Sections 8750, 8751, 8755 and 8757, Public Resources Code.

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MARINE OIL TERMINALS

Division 11

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Contents — 2025 California Building Code (Title 24, Part 2)
2025 California Building Code (Title 24, Part 2)
  1. Chapter 1 — ADMINISTRATION
  2. Chapter 2 — DEFINITIONS
  3. Chapter 3 — OCCUPANCY CLASSIFICATION AND USE
  4. Chapter 4 — SPECIAL DETAILED REQUIREMENTS BASED ON OCCUPANCY A…
  5. Chapter 5 — GENERAL BUILDING HEIGHTS AND AREAS
  6. Chapter 6 — TYPES OF CONSTRUCTION
  7. Chapter 7 — FIRE AND SMOKE PROTECTION FEATURES
  8. Chapter 7A — MATERIALS AND CONSTRUCTION METHODS FOR EXTERIOR W…
  9. Chapter 8 — INTERIOR FINISHES
  10. Chapter 9 — FIRE PROTECTION AND LIFE SAFETY SYSTEMS
  11. Chapter 10 — MEANS OF EGRESS
  12. Chapter 11 — RESERVED
  13. Chapter 11A — HOUSING ACCESSIBILITY
  14. Chapter 11B — ACCESSIBILITY TO PUBLIC BUILDINGS, PUBLIC ACCOMM…
  15. Chapter 12 — INTERIOR ENVIRONMENT
  16. Chapter 13 — ENERGY EFFICIENCY
  17. Chapter 14 — EXTERIOR WALLS
  18. Chapter 15 — ROOF ASSEMBLIES AND ROOFTOP STRUCTURES
  19. Chapter 16 — STRUCTURAL DESIGN
  20. Chapter 16A — STRUCTURAL DESIGN
  21. Chapter 17 — SPECIAL INSPECTIONS AND TESTS
  22. Chapter 17A — SPECIAL INSPECTIONS AND TESTS
  23. Chapter 18 — SOILS AND FOUNDATIONS
  24. Chapter 18A — SOILS AND FOUNDATIONS
  25. Chapter 19 — CONCRETE
  26. Chapter 19A — CONCRETE
  27. Chapter 20 — ALUMINUM
  28. Chapter 21 — MASONRY
  29. Chapter 21A — MASONRY
  30. Chapter 22 — STEEL
  31. Chapter 22A — STEEL
  32. Chapter 23 — WOOD
  33. Chapter 24 — GLASS AND GLAZING
  34. Chapter 25 — GYPSUM PANEL PRODUCTS AND PLASTER
  35. Chapter 26 — PLASTIC
  36. Chapter 27 — ELECTRICAL
  37. Chapter 28 — MECHANICAL SYSTEMS
  38. Chapter 29 — PLUMBING SYSTEMS
  39. Chapter 30 — ELEVATORS AND CONVEYING SYSTEMS
  40. Chapter 31 — SPECIAL CONSTRUCTION
  41. Chapter 31A — SYSTEMS FOR WINDOW CLEANING OR EXTERIOR BUILDING…
  42. Chapter 31B — PUBLIC POOLS
  43. Chapter 31C — RADIATION
  44. Chapter 31D — FOOD ESTABLISHMENTS
  45. Chapter 31F — MARINE OIL TERMINALS
  46. Chapter 32 — ENCROACHMENTS INTO THE PUBLIC RIGHT-OF-WAY
  47. Chapter 33 — SAFEGUARDS DURING CONSTRUCTION
  48. Chapter 34 — RESERVED
  49. Chapter 35 — REFERENCED STANDARDS
  50. Appendix A — EMPLOYEE QUALIFICATIONS
  51. Appendix B — BOARD OF APPEALS
  52. Appendix C — GROUP U—AGRICULTURAL BUILDINGS
  53. Appendix D — FIRE DISTRICTS
  54. Appendix E — RESERVED
  55. Appendix F — RODENTPROOFING
  56. Appendix G — FLOOD-RESISTANT CONSTRUCTION
  57. Appendix H — SIGNS
  58. Appendix I — PATIO COVERS
  59. Appendix J — GRADING
  60. Appendix K — GROUP R-3 AND GROUP R-3.1 OCCUPANCIES PROTECTED B…
  61. Appendix L — EARTHQUAKE RECORDING INSTRUMENTATION
  62. Appendix M — TSUNAMI-GENERATED FLOOD HAZARDS
  63. Appendix N — REPLICABLE BUILDINGS
  64. Appendix O — PERFORMANCE-BASED APPLICATION
  65. Appendix P — SLEEPING LOFTS
  66. Appendix Q — EMERGENCY HOUSING

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