Structural Design & Lateral Systems

Grounded in the retrieved California Building Code — click a citation to read the verbatim passage:

• CBC § 501A.3 High relevance — show source text

  501 A .2 Fire-resistance ratings. Fire-resistance ratings shall comply with the California Building Standards Code.

  501A.3 Prescriptive compliance provisions. Alterations, additions and changes of occupancy to the following categories of existing buildings and structures shall comply with the provisions of this section.

  501A.3.1 Prescriptive compliance provisions for SPC-4D using the California Building Code, 1980 (CBC 1980). Nonconforming buildings shall satisfy the following requirements: 1. The California Building Code, 1980 (CBC 1980), as used in this chapter, consists of the Uniform Building Code, 1979 (UBC 1979) along with requirements contained in: a) California Code of Regulations, Title 24- Building Standards, dated February 2, 1980 (Revision record for Register 80, No. 5). b) California Code of Regulations, Title 22 – Social Security, dated October 13, 1979 (Revision Record for Register 79, No 41). c) California Code of Regulations, Title 17 – Public Health, dated October 13, 1979 (Revision Record for Register 79, No 41-B). 2. All existing structural elements of Seismic Force Resisting System (SFRS) shall satisfy the detailing requirements in the CBC 1980 or demonstrate that the level of seismic performance is equivalent to that given in the CBC 1980, as determined by the building official. 3. A continuous load path or paths with adequate strength and stiffness to transfer all the forces from the point of origin to final point of resistance shall be justified by analysis. 4. Site data report in accordance with the CBC 1980 shall establish that seismically induced differential settlement does not exceed 1 ″ in 40 ′ .

  5. Adjacent buildings shall satisfy the SPC building separation requirements in accordance with the California Administrative Code, Chapter 6 Section 3.4. 6. The addition of new structural elements or strengthening of existing structural elements for retrofit of nonconforming build- ings to SPC-4D shall comply with the following: a) The seismic demand (forces or displacements) shall be in accordance with the CBC 1980; b) Capacity, detailing and connections for new structural elements shall satisfy the requirements in the CBC 2025 for new construction; and c) The strengthening of existing structural elements shall use capacities determined in accordance with the CBC 2025 for new construction consistent with the detailing and connections used in the strengthened member. 7. All construction, quality assurance and quality control shall be in accordance with the new construction provisions of CBC 2025.

  8. Elements not part of the Seismic Force-Resisting System (SFRS), including those identified in the California Administrative Code Chapter 6, Article 10, shall be evaluated using seismic forces and the requirements of the CBC 1980. 9. Any column or wall that forms part of two or more intersecting SFRS and is subjected to axial load due to seismic forces acting along either principal plan axis equaling or exceeding 20 percent of the axial design strength of the column or wall shall be _evaluated for the most critical load effect due to application of seismic force in any direction.

• CBC § 3.4. High relevance — show source text

  _ 4. Site data report in accordance with the CBC 1980 shall establish that seismically induced differential settlement does not exceed 1 ″ in 40 ′ .

  5. Adjacent buildings shall satisfy the SPC building separation requirements in accordance with the California Administrative Code, Chapter 6 Section 3.4. 6. The addition of new structural elements or strengthening of existing structural elements for retrofit of nonconforming build- ings to SPC-4D shall comply with the following: a) The seismic demand (forces or displacements) shall be in accordance with the CBC 1980; b) Capacity, detailing and connections for new structural elements shall satisfy the requirements in the CBC 2025 for new construction; and c) The strengthening of existing structural elements shall use capacities determined in accordance with the CBC 2025 for new construction consistent with the detailing and connections used in the strengthened member. 7. All construction, quality assurance and quality control shall be in accordance with the new construction provisions of CBC 2025.

  8. Elements not part of the Seismic Force-Resisting System (SFRS), including those identified in the California Administrative Code Chapter 6, Article 10, shall be evaluated using seismic forces and the requirements of the CBC 1980. 9. Any column or wall that forms part of two or more intersecting SFRS and is subjected to axial load due to seismic forces acting along either principal plan axis equaling or exceeding 20 percent of the axial design strength of the column or wall shall be evaluated for the most critical load effect due to application of seismic force in any direction. The most critical load effect may be deemed to be satisfied if members and their foundations are evaluated for 100 percent of the forces for one direction plus 30 percent of the forces for the perpendicular direction, whereby the combination produces the maximum effect. Exceptions: The following buildings (with structural irregularities or unusual configuration/system) shall not be eligible for the SPC-4D upgrade using the prescriptive provisions in this section: 1. Buildings with prohibited irregularities in accordance with California Building Code 2022 Section 1617A.1.10.

  2025 CALIFORNIA EXISTING BUILDING CODE 5A-3

  on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.

  �

  PRESCRIPTIVE COMPLIANCE METHOD

  2. Buildings taller than 5 stories or 65' height above the base having horizontal or vertical irregularities in accordance with ASCE 7-10 Tables 12.3-1 Items #1a, 1b and 3 or 12.3-2 Items #1a, 1b, 5a and 5b.

  3. Buildings with unusual configuration or structural system, as determined by the building official.

  501A.3.2 Prescriptive compliance provisions for SPC-4D using the new building design requirements of this code. Structures satisfying the requirements of the California Building Code for new general acute care hospital buildings design shall be deemed to satisfy the SPC-4D requirements of Table 2.5.3, Chapter 6 of the California Administrative Code.

• CBC § 319.10.2 High relevance — show source text

  319.10.2 Preconstruction meeting. A preconstruction meeting is mandatory for all projects which require structural observation. The meeting shall include, but is not limited to, the registered design professional, structural observer, general constructor, affected subcontractors, the project inspector and a representative of the enforcement agency (designated alternates may attend if approved by the structural observer). The structural observer shall schedule and coordinate this meeting. The purpose of the meeting is to identify and clarify all essential structural components and connections that affect the lateral and vertical load systems and to review scheduling of the required observations for the project’s structural system retrofit.

  319.11 Temporary actions. When compatible with the building use, and the time phasing for both use and the retrofit program, temporary shoring or other structural support is permitted to be considered. Temporary bracing, shoring and prevention of falling hazards are permitted to be used to qualify for Item 1 in Section 319.12 that allows inadequate capability in some existing components, as long as the required performance levels given in Section 317 can be provided by the permanent structure. The consideration for such temporary actions shall be noted in the design documents.

  319.12 Voluntary modifications to the lateral-force resisting system. Where modifications of existing structural components and additions of new structural components are initiated for the purpose of improving the lateral-force resisting strength or stiffness of an existing structure and they are not required by other sections of this code, then they are permitted to be designed to meet an approved seismic performance criteria provided that an engineering analysis is submitted that follows: 1. The capacity of existing structural components required to resist forces is not reduced, unless it can be demonstrated that reduced capacity meets the requirements of Section 319.8. 2. The lateral loading to or strength requirement of existing structural components is not increased beyond their capacity. 3. New structural components are detailed and connected to the existing structural components as required by the California Building Code. 4. New or relocated nonstructural components are detailed and connected to existing or new structural components as required by the California Building Code. 5. A dangerous condition is not created.

  Use of ASCE 41 Tier 1 and Tier 2 deficiency only retrofit procedures are pre-approved for use where Section 317.3 does not require an

  assessment.

  319.12.1 State-owned buildings. [BSC] Voluntary modifications to lateral force-resisting systems conducted in accordance with Appendix A of this code and the referenced standards of the California Building Code shall be permitted.

  319.12.1.1 Design documents. [BSC] When Section 319.12 is the basis for structural modifications, the approved design documents must clearly state the scope of the seismic modifications and the accepted criteria for the design. The approved design documents must clearly have the phrase “The seismic requirements of the California Existing Building Code have not been checked to determine if these structural modifications meet the full seismic evaluation and strengthening requirements of Sections 317-322: the modifications proposed are to a different seismic performance standard than would be required in Section 319 if they were not voluntary as allowed in Section 319.12.”

  3-20 2025 CALIFORNIA EXISTING BUILDING CODE

  on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.

  PROVISIONS FOR ALL COMPLIANCE METHODS

• CBC § 503A.4 High relevance — show source text

  4. Drift limits based on original design code shall be permitted to be used in lieu of the drift limits required by ASCE 7.

  503 A .5 Seismic Design Category F. Not permitted by OSHPD.

  503 A .6 Bracing for unreinforced masonry parapets on reroofing. Not permitted by OSHPD.

  503 A .7 Anchorage for concrete and reinforced masonry walls. Not permitted by OSHPD.

  503 A .8 Anchorage for unreinforced masonry walls in major alterations. Not permitted by OSHPD.

  503 A .9 Bracing for unreinforced masonry parapets in major alterations. Not permitted by OSHPD.

  503 A .10 Anchorage of unreinforced masonry partitions in major alterations. Not permitted by OSHPD.

  503 A .11 Substantial structural alteration. Not permitted by OSHPD.

  503 A .12 Roof diaphragms resisting wind loads in high-wind regions. Not permitted by OSHPD.

  503 A .13 Voluntary lateral force-resisting system alterations. Structural alterations that are intended exclusively to improve the lateral force-resisting system and are not required by other sections of this code shall not be subject to the structural requirements of Section 503 A except as described below, provided that all of the following apply:

  1. With the alteration complete, the capacity of existing structural systems to resist forces is not reduced.
  2. New structural elements are detailed and connected to existing or new structural elements as required by the selected design criteria in accordance with Section 503A.4 or 304A.3.4 of this code. Exception: New lateral force-resisting systems designed in accordance with the California Building Code are permitted to be of a type designated as “Ordinary” or “Intermediate” where ASCE 7 Table 12.2-1 states these types of systems are not permitted.
  3. Supports and attachments for nonstructural elements removed and reinstalled to facilitate the work comply with the Cali- fornia Building Code for new construction.
  4. The alterations do not create a structural irregularity as defined in ASCE 7 or make an existing structural irregularity more

  severe.

  Exception: Condition 4 need not be satisfied where the work complies with Section 304A.3.4 of this code.

  503 A .14 Smoke compartments. Shall comply with California Building Standards Code.

  503 A .15 Refuge areas. Shall comply with California Building Standards Code.

  503 A .16 Reserved.

• CBC § 04-15 High relevance — show source text

  . . . . . . . . . 063928

  Table	1 Description of Items to be Furnished and Installed by Customer
  Item	Description
  1	Option 1: Meter Adapter, Cooper B-Line Cat. No. MARR20L45GRSD (160A) Use with Customer’s Panel Rated at 160A Continuous1, 2
  1	Option 2: Meter Adapter, Ekstrom Industries No. 722B (175A). Specify Left, Right, or Bottom Hub
  2	Combination Service Meter and Breaker Panel (rating as required)
  3	Pull Termination Box, 8” x 12” x 4”, Rain-Tight, Circle A-W (Cooper B-Line) No. R-9007A or Equivalent (see Note 4M on Page 2)
  4	Conduit, See Notes 4C and 4G on Page 1
  5	Hub to Be Closed and Made Tamper Proof
  6	Pull Termination Box, 12” x 26” x 6”, Rain-Tight, Circle A-W Catalog Number R-90008, or Equivalent (see Note 4K on Page 2)

  1 Fifth jaw accessory, use Cooper B-Line Cat. No. 50365. 2 Reducer hub and gasket accessories for 2” conduit, use Cooper B-Line Cat. No. AW200 and 12750A.

  061032 Page 2 of 4 Rev. #04: 04-15-11

  UG-1: Services Greenbook Residential and Small Commercial Overhead to Underground Electric Service Conversion

  Optional Removable by Customer To Be Removed by PG&E Meter Socket (see Figure 2 through Figure 7 on Pages 3 through 4) For Riser and Pull Box Detail (see Figure 2 through Figure 7 on Pages 3 through 4) For Gas and Water Sealing Requirements, see Documents 063927 and Document 063928 48” Min. 72” Max. Customer Shall Dig and Backfill Trench (see Note 4B on Page 1) Min. Bend Depth To PG&E Distribution System As required by	Col2	Col3
  Customer Shall Dig and Backfill Trench (see Note 4B on Page 1) For Riser and Pull Box Detail (see Figure 2 through Figure 7 on Pages 3 through 4) Meter Socket (see Figure 2 through Figure 7 on Pages 3 through 4) To Be Removed by PG&E For Gas and Water Sealing Requirements, seeDocuments 063927 andDocument 063928 To PG&E Distribution System Optional Removable by Customer 48” Min. 72” Max. As required by Min. Bend Depth

  Document 063927 and Document 063928

  Figure 1 Typical Service Conversion

  PG&E Service Termination Point

  See Note 4K on Page 2

  PG&E Service Termination Point (see Note 4L on Page 2)

• CBC § 2-1 Medium relevance — show source text

  Figure 5 Figure 6 Service Drop Cable to Underground Line Service Drop Cable to Overhead Line

  025055 Page 10 of 17 Rev. #20: 3/25/2022

  OH: Services Greenbook Requirements for Customer-Owned Poles EMWP

  Permanent Installations (continued)

  Alternate Locations for Service Drop and Guy

  on Page 10)

  Detail B See Figure 5 and Figure 6 on Page 10

  Figure 7 Open Insulated Wire Construction (for use when the load requires a larger service drop conductor)

  Method of Covering Metal Conduits and Attaching Coverings on Wood Poles

  Notes

  1. Strap PVC conduit to the pole with 2−hole heavy duty pipe straps or galvanized perforated plumber’s tape spaced not more than 3 feet apart (see Figure 8).

  2. Attach PVC molding to the poles with 1/4” x 2-1/2” galvanized washer-head lag screws.

  Figure 8 PVC Conduit (see Note 1)

  Figure 9 PVC Molding (see Note 2)

  Rev. #20: 3/25/2022 025055 Page 11 of 17

  OH: Services Greenbook Requirements for Customer-Owned Poles EMWP

  Meter Connections

  1. For test bypass facilities, see Note 25 on Page 6.

  2. All wiring material on the load side of the meter socket must be in accordance with applicable electrical codes, city and county ordinances, and must comply with the California Building Standards Code − Electrical Regulations. Unless threaded connections are used, adequate bonding of all sections of the service equipment must be provided.

  Threaded Conduit Hub

  4-Terminal

  Meter Socket (see Note 1)

  Lock

  Ground Wire (see Note 20 on Page 5)

  Threaded

  Conduit Hub

  4-Terminal Meter Socket (see Note 1)

  Weatherproof Service Switch. Cover Must Be

  Locked if Enclosure Contains Exposed Live Parts.

  Weatherproof Receptacles (see Notes 18 and 19 on Page 5)

  Figure 10 120/240 V, 3-Wire With WHM, Service Switch, and Receptacle in Weatherproof Cabinet (see Note 2)

  Figure 11 120/240 V, 4-Wire Delta With Weatherproof Service Switch and Receptacles (see Note 2)

  Figure 12 120/240 V, 3-Wire With Weatherproof Service Switch and Receptacles (see Note 2)

  Details of Anchors, Guying Materials, and Brace

  5/8” Diameter x 72”

  2” x 4” Min. Wood

  Galvanized Steel

  Anchor Rod

  Length Approx.

  (minimum size)

  2” x 4” Min. Wood

  Length Approx.

  Figure 13 Steel Anchor

• CBC § 04-15 Medium relevance — show source text

  . . . . . . . . . . . . . . . . . . . UG-1: Services/Greenbook . . . . . . . . . . . . . . . . . . 063927 Methods and Requirements for Installing Commercial Underground Electric Services 0−600 Volts to Customer-Owned Facilities . . . . . . . . . . . . . . . . . . . . UG-1: Services/Greenbook . . . . . . . . . . . . . . . . . . 063928

  Table	1 Description of Items to be Furnished and Installed by Customer
  Item	Description
  1	Option 1: Meter Adapter, Cooper B-Line Cat. No. MARR20L45GRSD (160A) Use with Customer’s Panel Rated at 160A Continuous1, 2
  1	Option 2: Meter Adapter, Ekstrom Industries No. 722B (175A). Specify Left, Right, or Bottom Hub
  2	Combination Service Meter and Breaker Panel (rating as required)
  3	Pull Termination Box, 8” x 12” x 4”, Rain-Tight, Circle A-W (Cooper B-Line) No. R-9007A or Equivalent (see Note 4M on Page 2)
  4	Conduit, See Notes 4C and 4G on Page 1
  5	Hub to Be Closed and Made Tamper Proof
  6	Pull Termination Box, 12” x 26” x 6”, Rain-Tight, Circle A-W Catalog Number R-90008, or Equivalent (see Note 4K on Page 2)

  1 Fifth jaw accessory, use Cooper B-Line Cat. No. 50365. 2 Reducer hub and gasket accessories for 2” conduit, use Cooper B-Line Cat. No. AW200 and 12750A.

  061032 Page 2 of 4 Rev. #04: 04-15-11

  UG-1: Services Greenbook Residential and Small Commercial Overhead to Underground Electric Service Conversion

• CBC § 1603A.3 Medium relevance — show source text

  5. Seismic force resisting system used for each structure in the project. 6. Foundation system that will be used for each structure in the project such as spread footing, drilled piers, etc. 7. Analysis procedure used and basis of design such as ASCE 7 Equivalent Lateral Force Procedure, ASCE 41 Nonlinear Dynamic Procedure, etc.

  8. Building characteristics such as number of stories above and below grade, foot print area at grade, grade slope on site, etc. 9. Special features such as requirement for shoring, underpinning, retaining walls, etc.

  1603A.3 Structural design basis and calculations. The application for the approval of construction documents that involves structural elements or components shall be accompanied by complete and accurate structural design computations, which shall comply with requirements prescribed by the enforcement agency: 1. The computations shall be preceded by a detailed index. 2. The computations including each major subsection shall be prefaced by a statement clearly and concisely outlining the basis for the structural design and indicating the manner in which the structure will resist the vertical loads and lateral forces. 3. The computations shall be sufficiently complete to the extent that calculations for the individual structural members and connections can be readily interpreted.

  SECTION 1604 A —GENERAL DESIGN REQUIREMENTS

  1604 A .1 General. Building, structures and parts thereof shall be designed and constructed in accordance with strength design, load and resistance factor design, allowable stress design, empirical design or conventional construction methods, as permitted by the applicable material chapters and referenced standards.

  1604 A .2 Strength. Buildings and other structures, and parts thereof, shall be designed and constructed to support safely the factored loads in load combinations defined in this code without exceeding the appropriate strength limit states for the materials of construction.

  2025 CALIFORNIA BUILDING CODE 16A-5

  on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.

  STRUCTURAL DESIGN

  Alternatively, buildings and other structures, and parts thereof, shall be designed and constructed to support safely the nominal loads in load combinations defined in this code without exceeding the appropriate specified allowable stresses for the materials of construction.

  Loads and forces for occupancies or uses not covered in this chapter shall be subject to the approval of the building official.

  1604 A .3 Serviceability. Structural systems and members thereof shall be designed to have adequate stiffness to limit deflections as indicated in Table 1604 A .3.

  TABLE 1604A.3—DEFLECTION LIMITSa, b, c, h, i	Col2	Col3	Col4
  CONSTRUCTION	L or Lr	_E, Sj or W_f	**D + (L or Lr) d,

• CBC § 7.47 Medium relevance — show source text

  15|7.47|7.72|8.10|8.37|8.58| |45|75|30|7.05|7.35|7.58|7.93|8.18|8.36| |44|75|31|6.95|7.23|7.45|7.77|8.00|8.16| |43|75|32|6.85|7.13|7.33|7.63|7.83|7.98| |42|75|33|6.75|7.03|7.22|7.49|7.68|7.82| |41|75|34|6.65|6.93|7.12|7.37|7.55|7.67| |46|80|34|6.65|6.93|7.12|7.37|7.55|7.67| |40|75|35|6.55|6.83|7.01|7.26|7.42|7.54| |45|80|35|6.55|6.83|7.01|7.26|7.42|7.54| |44|80|36|6.44|6.73|6.92|7.15|7.30|7.41| |43|80|37|6.32|6.63|6.82|7.05|7.19|7.30| |42|80|38|6.20|6.53|6.72|6.95|7.09|7.19| |41|80|39|6.06|6.42|6.62|6.85|6.99|7.08| |46|85|39|6.06|6.42|6.62|6.85|6.99|7.08| |40|80|40|5.91|6.30|6.52|6.76|6.89|6.98| |45|85|40|5.91|6.30|6.52|6.76|6.89|6.98| |44|85|41|5.75|6.17|6.403|6.66|6.79|6.89| |43|85|42|5.57|6.03|6.28|6.55|6.70|6.79| |42|85|43|5.37|5.88|6.16|6.44|6.59|6.69| |41|85|44|5.15|5.71|6.01|6.33|6.49|6.59| |40|85|45|4.91|5.53|5.86|6.20|6.37|6.48| |Condenser DT2|Condenser DT2|Condenser DT2|14.04|11.23|9.36|7.02|5.62|4.68| |1. LIFT = Entering Condenser Water Temperature (°F) – Leaving Chilled Water Temperature (°F)
  2.

• CBC § 0.249 Medium relevance — show source text

  24
  |0.249
  |0.048
  |–
  | |4.94|0.326|0.063|–| |5.65|0.413|0.080|–| |6.36|0.507|0.098|–| |7.06|0.611|0.118|0.030| |7.77|0.723|0.139|0.035| |8.47|0.843|0.162|0.041| |9.18|0.969|0.187|0.047| |9.89|1.108|0.212|0.053| |10.59|1.252|0.240|0.060| |12.36|1.647|0.315|0.079| |14.12
  |2.090
  |0.398
  |0.100
  | |15.89
  |2.580
  |0.490
  |0.123
  | |17.66|3.116|0.591|0.148| |19.42|–|0.701|0.176| |21.19|–|0.818|0.205| |22.95|–|0.944|0.236| |24.72|–|1.078|0.268| |28.25|–|1.369|0.341| |31.78|–|1.690|0.421| |35.31|–|2.043|0.509| |38.84|–|2.425|0.603| |42.37|–|2.838|0.705| |45.90
  |–
  |3.280
  |0.814
  | |49.43|–|3.751|0.929| |52.97|–|4.249|1.052| |56.50|–|–|1.181| |60.03|–|–|1.318| |63.56|–|–|1.461| |67.09|–|–|1.611| |70.62|–|–|1.768| |81.21|–|–|2.276| |88.28|–|–|2.647| |95.34|–|–|3.044|

  FLOW RATE (SCFM)1	PRESSURE DROP (psi) PER 100 FEET2	Col3	Col4
  FLOW RATE (SCFM)1	1⁄2 INCH PIPE	3⁄4 INCH PIPE	1 INCH PIPE
  5.30	0.126	0.024	–
  10.59	0.430	0.082	–
  15.89	0.886	0.168	–
  21.19	1.485	0.281	–
  26.48	2.220	0.419	–
  31.78	3.089	0.581	–
  37.08	4.087	0.766	–
  42.37	–	0.975	–
  47.67	–	1.206	–
  52.97	–	1.460	0.361
  58.26	–	1.736	0.429
  63.56	–	2.033	0.502
  68.85	–	2.

• CBC § 203.1.1 Medium relevance — show source text

  A4.203.1.1 Long-term system cost (LSC). LSC rating for the building’s Proposed Design shall be computed by Compliance Software certified by the Energy Commission as specified in Title 24, Part 6, Section 100.1 and 150.1(b), and shall reduce the LSC required in the Compliance Software for minimum performance-based compliance with the California Energy Code by the compliance margin specified in Table A4.203.1.1. The rating shall be included in the Certificate of Compliance documentation.

  TABLE A4.203.1.1—RECOMMENDED LSC MARGINS BY CLIMATE ZONES	Col2
  CALIFORNIA ENERGY CODE CLIMATE ZONE	TOTAL LSC COMPLIANCE MARGIN
  1	2.70
  2	1.62
  3	1.10
  4	1.11
  5	1.01
  6	0.24
  7	0.24
  8	0.21
  9	0.20
  10	0.18
  11	1.11
  12	1.05
  13	0.96
  14	1.21
  15	0.59
  16	1.68
  Note: Community shared options complying with Title 24, Part 1, Section 10-115 may be used to achieve LSC targets.	Note: Community shared options complying with Title 24, Part 1, Section 10-115 may be used to achieve LSC targets.

  2025 CALIFORNIA GREEN BUILDING STANDARDS CODE APPENDIX A4-9

  on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.

  APPENDIX A4 — RESIDENTIAL VOLUNTARY MEASURES

  A4.203.1.2 Prerequisite options. In addition, a minimum of TWO of the efficiency measures specified in Sections A4.203.1.2.1 through A4.203.1.2.7 must be met.

  A4.203.1.2.1 Roof deck insulation, or ducts in conditioned space. Meet one of the three options for the location of ducts and air handlers as well as insulation R -values and installation of a radiant barrier as specified in Title 24, Part 6, Section 150.1(c)9A or B:

  1. Below roof deck insulation with a minimum R -value of 19; or,

  2. Continuous above deck insulation with a minimum R-8 and with an air space present between the roofing and the roof deck; or,

  3. All ducts and air handlers in conditioned space as specified in the Title 24, Part 6, Reference Appendix RA3.1.

  A4.203.1.2.2 High performance walls. Meet the climate zone dependent U -factor or insulation R -value for either 2x6 or 2x4 framing as specified in Title 24, Part 6, Section 150.1(c)1B: maximum U -factor of 0.048.

  A4.203.1.2.3 Compact hot water distribution system. Meet the requirements for installation of Compact Hot Water Distribution Systems specified in the Title 24, Part 6, Reference Appendix RA3.6.5.

• CBC § 11-01 Medium relevance — show source text

  1. It is recommended that the main circuit breakers used in pedestals have a 10,000-amp short-circuit current rating to insure compliance with state and local codes. These codes require that the main breaker of service equipment be rated at the available short-circuit current. PG&E shall design its facilities to supply all new mobile home customers so that the short circuit duty at the pedestal will not exceed 10,000 amps.

  2. See Table 2 on Page 6 for a list of approved meter pedestal manufacturers and catalog numbers.

  3. Pedestals are allowed to have rear connection kit.

  Table	1 List of Material for Supplying Electric Service to Mobile Home Developments
  Item	Description
  Material to Be Supplied by Applicant	Material to Be Supplied by Applicant
  1	Meter Pedestal (as required, see Table 2 on Page 6 for the approved list)
  2	Conduit, Rigid Steel, Galvanized, with Pipe Strap (for bare ground wire, omit if armor clad wire is used)
  3	Hub and Clamp, Grounding (to suit Item 3)
  4	Conduit Fitting, Threaded, With Cover and Gasket (size to suit Item 3)
  5	Ground Rod (see Instruction 5B on Page 1)
  6	Ground Wire, Copper, Bare, or Armor Clad (size in accordance with applicable electrical codes and local requirements)
  7	Conduit and Cap (as required)
  Material to Be Furnished by PG&E	Material to Be Furnished by PG&E
  8	Cable, XLP, 600-V (as required), seeDocument 039955 (see Table 2)

  Table 2 Approved Meter Pedestals [3]

  Rating (amps)	Mobile Home Electric Metering Pedestals	Col3
  Rating (amps)	Manufacturer	Catalog Number
  0 − 125	Myers Elec. Prod.	MES-M100SE
  0 − 125	MILBANK	MPRV Series
  0 − 200	Myers Elec. Prod.	MES-M200SE
  0 − 200	MILBANK	MPAP Series
  0 − 200	MILBANK	U6276 Series

  1 See Notes on Page 6. 2 Pedestals can have rear connection kits. 3 Other meter pedestal that meet EUSERC 307 and PG&E requirements may be allowed.

  052521 Page 6 of 8 Rev. #06: 11-01-18

  Greenbook EMWP Electrical Service Requirements for Mobile Home Developments

  Service and Meter Pedestal

  Notes

  1. The meter pedestal shown on Page 8 may be used for a single service only.