National Codes & Design Standards (Non-Reclamation)

Reclamation design activities must be performed in accordance with established Reclamation design criteria and standards, and approved national design standards.  National codes and design standards provide a consistency of standard practice across a wide variety of engineering disciplines.  The adoption of national codes and standards reduces the effort to develop and maintain Reclamation standards.  Reclamation designers shall use the most current edition of national codes and design standards consistent with Reclamation design standards.  This list identifies primary national codes and design standards used by Reclamation designers but does not include all codes, standards, and guidelines that may be referenced by these documents. Reclamation design standards may include exceptions to requirements of national codes and design standards.

ACI — American Concrete Institute

  • ACI 318 — Building Code Requirements for Structural Concrete
  • ACI 327R — Guide to Roller-Compacted Concrete Pavements
  • ACI 350 — Code Requirements for Environmental Engineering Structures
  • ACI 530 — Building Code Requirements and Specifications for Masonry Structures

AGC — Association of General Contractors

  • Construction Planning and Scheduling Manual

AISC — American Institute of Steel Construction, Inc.

  • AISC 303 — Code of Standard Practice for Steel Buildings and Bridges
  • AISC 325 — Steel Construction Manual
  • AISC 327 — Seismic Design Manual
  • AISC 341 — Seismic Provisions for Structural Steel Buildings
  • AISC 358 — Prequalified Connections for Steel Moment Frames for Seismic Application
  • AISC 360 — Specifications for Structural Steel Buildings
  • Specifications for Structural Joints Using High Strength Bolts

ANSI — American National Standards Institute

  • Z358.1 — Emergency Eyewash and Shower Equipment
  • Z359 — Fall Protection

ANSI/HI — American National Standards Institute/Hydraulic Institute

  • ANSI/HI 9.6.1 — Centrifugal and Vertical Pumps, NPSH Margin
  • ANSI/HI 9.6.3 — Centrifugal and Vertical Pumps, Allowable Operating Region
  • ANSI/HI 9.6.4 — Centrifugal and Vertical Pumps, Vibration Measurements and Allowable Values
  • ANSI/HI 9.8 — Pump Intake Design

ASCE — American Society of Civil Engineers

  • ASCE 12 — Standard Guidelines for the Design of Urban Subsurface Drainage
  • ASCE 13 — Standard Guidelines for Installation of Urban Subsurface Drainage
  • ASCE 14 — Standard Guidelines for Operation and Maintenance of Urban Subsurface Drainage
  • ASCE 38 — Standard Guideline for the Collection and Depiction of Existing Subsurface Utility Data
  • ASCE 74 — Guidelines for Electrical Transmission Line Structural Loading
  • ASCE/SEI 7 — Minimum Design Loads and Associated Criteria for Building and Other Structures
  • ASCE/SEI 48 — Design of Steel Transmission Pole Structures
  • ASCE Manuals and Reports on Engineering Practice No. 74 — Guidelines for Electrical Transmission Line Structural Loading
  • ASCE Manuals and Reports of Engineering Practice No. 113 — Substation Structure Design Guide

ASHRAE — American Society of Heating, Refrigerating, and Air-Conditioning Engineers, Inc.

  • ASHRAE 55 — Thermal Environmental Conditions for Human Occupancy
  • ASHRAE 62.1 — Ventilation for Acceptable Indoor Air Quality
  • ASHRAE 90.1 — Energy Standard for Buildings Except Low-Rise Residential Buildings
  • ASHRAE Fundamentals Handbook
  • ASHRAE Refrigeration Handbook
  • ASHRAE HVAC Applications Handbook
  • ASHRAE HVAC Systems and Equipment Handbook
  • ASHRAE Smoke Control Engineering Handbook

ASME — The American Society of Mechanical Engineers

  • ASME A13.1 — Scheme for the Identification of Piping Systems
  • ASME A17.1 — Safety Code for Elevators and Escalators Includes Requirements for Elevators, Escalators, Dumbwaiters, Moving Walks, Material Lifts, and Dumbwaiters With Automatic Transfer Devices

AWS — American Welding Society

  • AWS D1.1 — Structural Welding Code Steel
  • AWS D1.2 — Structural Welding Code Aluminum
  • AWS D1.6 — Structural Welding Code – Stainless Steel

AWWA — American Water Works Association (AWWA)

  • C104 — Cement Mortar Lining for Ductile Iron
  • C105 — Polyethylene Encasement for Ductile Iron
  • C110 — Ductile Iron and Gray-Iron Fittings
  • C111 — Rubber Gasket Joints for Ductile Iron
  • C116 — Protective Fusion Bonded Epoxy Coatings
  • C153 — Ductile Iron Compact Fittings
  • C200 — Steel Water Pipe 6 inches and larger
  • C206 — Field Welding of Steel Water Pipe
  • C207 — Steel Pipe Flanges for Waterworks Service - Sizes 4 inches through 144 inches
  • C219 — Bolted, Sleeve-Type Couplings for Plain-End Pipe
  • C220 — Stainless Steel Pipe 1/2-in. and Larger
  • C228 — Stainless-Steel Pipe Flanges for Water Service
  • C231 — Field Welding of Stainless-Steel Water Pipe
  • C300 — Reinforced Concrete Pressure Pipe, Steel-Cylinder Type
  • C302 — Reinforced Concrete Pressure Pipe, Noncylinder Type
  • C303 — Concrete Pressure Pipe, Bar-Wrapped, Steel-Cylinder Type
  • C305 — Renewal and Strengthening of Prestressed Concrete Cylinder pipe (PCCP)
  • C500 — Metal Seated Gate Valves
  • C504 — Rubber-Seated Butterfly Valves
  • C540 — Electric Motor Actuators for Valves and Sluice Gates
  • C542 — Electric Motor Actuators for Valves and Slide Gates
  • C560 — Cast-Iron Sluice Gates
  • C561 — Fabricated Stainless Steel Slide Gates
  • C606 — Grooved and Shouldered Joints
  • C651 — Disinfecting Water Mains
  • C652 — Disinfection of Water-Storage Facilities
  • C900 — Polyvinyl Chloride (PVC) Pressure Pipe and Fabricated Fittings, 4 in. Through 60 In.
  • C906 — Polyethylene (PE) Pressure Pipe and Fittings, 4 in. Through 63 In. for Waterworks
  • C950 — Glass-Fiber Reinforced Thermosetting-Resin Pressure Pipe
  • D100 — Welded Carbon Steel Tanks for Water Storage
  • D110 — Wire- and Strand-Wound, Circular, Prestressed Concrete Water Tanks
  • D115 — Tendon-Prestressed Concrete Water Tanks
  • M9 — Concrete Pressure Pipe
  • M11 — Steel Pipe – A Guide for Design and Installation
  • M23 — PVC Pipe – Design and Installation
  • M41 — Ductile-Iron Pipe and Fittings
  • M45 — Fiberglass Pipe Design
  • M55 — PE Pipe – Design and Installation

ICC — International Code Council

  • IBC — International Building Code
  • IECC — International Energy Conservation Code
  • IFC — International Fire Code
  • IFGC — International Fuel Gas Code
  • IMC — International Mechanical Code
  • IPC — International Plumbing Code

IEC — International Electrotechnical Commission

  • 60193(1999) — Model Acceptance Tests to Determine the Hydraulic Performance of Hydraulic Turbines, Storage Pumps, and Pump-Turbines
  • IEC/IEEE 62271-37-013 (2015) — High-voltage switchgear and control gear – Part 37-013: Alternating-current generator circuit-breakers
  • Std. 1131-3 — Programmable Controllers, Part 3: Programming Languages

IEEE — Institute of Electrical and Electronics Engineers

  • IEEE 4 — Techniques for High-Voltage Testing (Including Amendment A)
  • IEEE 80 — Guide for Safety in AC Substation Grounding
  • IEEE 81 — Guide for Measuring Earth Resistivity, Ground Impedance, and Earth Surface Potentials of a Ground System
  • IEEE 95 — Recommended Practice for Insulation Testing of Large AC Rotating Machinery with High Direct Voltage
  • IEEE 115 — Test Procedure for Synchronous Machines
  • IEEE 125 — Recommended Practice for Preparation of Equipment Specifications for Speed-Governing of Hydraulic Turbines Intended to Drive Electric Generators
  • IEEE 421.1 — Standard Definitions for Excitation Systems for Synchronous Machines
  • IEEE 421.2 — Guide for Identification, Testing, and Evaluation of the Dynamic Performance of Excitation Control Systems
  • IEEE 421.3 — Standard for High-Potential Test Requirements for Excitation Systems for Synchronous Machines
  • IEEE 421.4 — Guide for the Preparation of Excitation System Specifications
  • IEEE 421.5 — Recommended Practice for Excitation System Models for Power System Stability Studies
  • IEEE 421.6 — Recommended Practice for the Specification and Design of Field Discharge Equipment for Synchronous Machines
  • IEEE 524 — IEEE Guide to the Installation of Overhead Transmission Line Conductors
  • IEEE 605 — IEEE Guide for Bus Design in Air Insulation Substations
  • IEEE 691 — IEEE Guide for Transmission Structure Foundations Design and Testing
  • IEEE 693 — IEEE Recommended Practice for Seismic Design of Substations
  • IEEE 980 — IEEE Guide for Containment and Control of Oil Spills in Substations
  • IEEE 1095 — Guide for Installation of Vertical Generators and Generator/Motors for Hydroelectric Applications
  • IEEE 1147 — Guide for the Rehabilitation of Hydroelectric Power Plants
  • IEEE 1207 — Guide for the Application of Turbine Governing Systems for Hydroelectric Generating Units
  • IEEE 1584 — Guide for Performing Arc-Flash Hazard Calculations
  • IEEE 1584.1 — Specification of Scope and Deliverable Requirements for an Arc-Flash Hazard Calculation Study in Accordance with IEEE Std 1584
  • IEEE C2 — National Electrical Safety Code (NESC)
  • IEEE C37.011 — Transient Recovery Voltage for AC High-Voltage Circuit Breakers Rated on a Symmetrical Current Basis
  • IEEE C37.04 — Rating Structure for AC High-Voltage Circuit Breakers Rated on a Symmetrical Current Basis
  • IEEE C37.06 — AC High Voltage Circuit Breakers Rated on a Symmetrical Current Basis - Preferred Ratings and Related Required Capabilities
  • IEEE C37.09 — Test Procedures for AC High-Voltage Circuit Breakers Rated on a Symmetrical Current Basis
  • IEEE C37.11 — Requirements for Electrical Control for AC High-Voltage (>1000 V) Circuit Breakers
  • IEEE C37.12 — Guide for Specifications of High-Voltage Circuit Breakers
  • IEEE C37.1 — Standard for SCADA and Automation Systems
  • IEEE C37.2 — Standard Electrical Power System Device Function Numbers and Contact Designations
  • IEEE C37.20.1 — Metal-Enclosed Low-Voltage (1000 Vac and below, 3200 Vdc and below) Power Circuit Breaker Switchgear
  • IEEE C37.20.2 — Metal-Clad Switchgear
  • IEEE C37.20.3 — Metal-Enclosed Interrupter Switchgear (1 kV–38 kV)
  • IEEE C37.20.4 — Indoor AC Switches (1 kV to 38 kV) for Use in Metal-Enclosed Switchgear
  • IEEE C37.20.6 — 4.76 kV to 38 kV Rated Ground and Test Devices Used in Enclosures IEEE C37.20.7 - Guide for Testing Switchgear Rated Up to 52 kV for Internal Arcing Faults
  • IEEE C37.245 — Guide for Application of Protective Relaying for Phase-Shifting Transformers
  • IEEE C50.12 — Salient-Pole 50 Hz and 60 Hz Synchronous Generators and Generator/Motors for Hydraulic Turbine Applications Rated 5 MVA and Above
  • IEEE C57.12.00 — Liquid-Immersed Distribution, Power, and Regulating Transformers
  • IEEE C57.12.10 — Requirements for Liquid-Immersed Power Transformers
  • IEEE C57.12.80 — Terminology for Power and Distribution Transformers
  • IEEE C57.12.90 — Test Code for Liquid-Immersed Distribution, Power, and Regulating Transformers and
  • IEEE C57.13 — Requirements for Instrument Transformers
  • IEEE C57.18.10 — Standard Practices and Requirements for Semiconductor Power Rectifier
  • IEEE C57.19.04 — Performance Characteristics and Dimensions for High Current Power Transformer Bushings with Rated Continuous Current in Excess of 5000 A in Bus Enclosures
  • IEEE C57.113 — Recommended Practice for Partial Discharge Measurement in Liquid-Filled Power Transformers and Shunt Reactors
  • IEEE C57.113 — Guide for Application for Monitoring Equipment to Liquid-Immersed Transformers and Components
  • IEEE C57.147 — Guide for Acceptance and Maintenance of Natural Ester Insulating Liquid in Transformers
  • IEEE C57.152 — Recommended Practice for Partial Discharge Measurement in Liquid-Filled Power Transformers and Shunt Reactors
  • IEEE C57.154 — The Design, Testing, and Application of Liquid-Immersed Distribution, Power, and Regulating Transformers Using High-Temperature Insulation Systems and Operating at Elevated Temperatures
  • IEEE PC57.164 — Guide for Establishing Short Circuit Withstand Capabilities of Liquid Immersed Power Transformers, Regulators and Reactors
  • IEEE C57.19.00 — General Requirements and Test Procedure for Outdoor Power Apparatus Bushings
  • IEEE C57.19.01 — Performance Characteristics and Dimensions for Outdoor Apparatus Bushings
  • IEEE C57.93 — Guide for Installation and Maintenance of Liquid-Immersed Power Transformers
  • IEEE C57.110 — Recommended Practice for Establishing Transformer Capability when Supplying Non-Sinusoidal Load Currents
  • IEEE C57.113 — Guide For Partial Discharge Measurement In Liquid-Filled Power Transformers And Shunt Reactors
  • IEEE C57.116 — IEEE Guide for Transformers Directly Connected to Generators

National Forest Products Association

  • National Design Specification for Stress-Grade Lumber and its Fastenings, Latest Edition

NEMA — National Electrical Manufacturers Association

  • NEMA 107 — Methods of Measurements of Radio Influence Voltage (RIV) of High Voltage Apparatus
  • NEMA 250 — Enclosures for Electrical Equipment
  • NEMA FU 1 — Low Voltage Cartridge Fuses
  • NEMA MG1 — Motors and Generators (revision 4)
  • Part ICS 2-125 — Limit Switches
  • NEMA SG 4 — Alternating-Current High-Voltage Circuit Breakers
  • NEMA ST 20 — Dry-Type Transformers for General Applications
  • NEMA TR 1 — Transformer, Regulators, and Reactors
  • NEMA WD 6 — Wiring Devices - Dimensional Requirement

NFPA — National Fire Protection Association

  • NFPA 10 — Portable Fire Extinguishers
  • NFPA 30 — Flammable and Combustible Liquids Code
  • NFPA 37 — Installation and Use of Combustion Engines and Gas Turbines
  • NFPA 54 — National Fuel Gas Code
  • NFPA 55 — Compressed Gases and Cryogenic Fluids Code
  • NFPA 70 — National Electric Code
  • NFPA 72 — Fire Signaling and Alarm Code
  • NFPA 101 — Life Safety Code Handbook
  • NFPA 110 — Emergency and Standby Power Systems
  • NFPA 780 — Standard for the Installation of Lightning Protection Systems
  • NFPA 851 — Recommended Practice for Fire Protection for Hydroelectric Generating Plants

OSHA — Occupational Health and Safety Act

  • 29 CFR 1910 — Code of Federal Regulations, Occupational Safety and Health Standards, General Industry
  • 29 CFR 1926 — Code of Federal Regulations, Occupational Safety and Health Standards for Construction

SDI — Steel Deck Institute

  • Design Manual for Composite Decks, Roof Decks, and Cellular Metal Floor Decks with Electrical Distribution
  • Diaphragm Design Manual

SJI — Steel Joist Institute

  • Recommended Code of Standard Practice for Steel Joists and Joist Girders

United States Access Board

  • Americans with Disabilities Act Accessibility Guidelines (ADAAG)
  • Uniform Federal Accessibility Standards (UFAS)
  • Architectural Barriers Act Accessibility Standards (ABAAS)


Last Updated: 11/20/20