Civil (Site) & Environmental Engineering Standards

Review Design Standards General Statements before utilizing this web page.

On this page:
Building Codes & Industry Standards
Government Directives & Government Standards
National Park Service (NPS) Requirements
Executive Orders (EOs)

Building Codes & Industry Standards

Site & Transportation

  • AASHTO (American Association of State Highway and Transportation Officials) Standards
  • AASHTO "Green Book" - A Policy on Geometric Design of Highways and Streets 2011
  • American Public Works Association (APWA) Standards
  • American Society of Civil Engineers (ASCE) Standards
  • American Society of Landscape Architects (ASLA) Standards
  • Architectural Barriers Act (ABA) Accessibility Standards
  • Army Corp of Engineers (ACOE) Standards
  • Asphalt Institute (AI) Standards
  • Chain Link Fence Manufacturers Institute (CLFMI) Standards
  • Department of Transportation (DOT) Standards
  • Federal Lands Highway - Project Development, Design, and Construction Manual 2012
  • Irrigation Association (IA) Standards
  • Manual on Uniform Traffic Control Devices (MUTCD) 2009
  • National Asphalt Pavement Association (NAPA) Standards
  • Portland Cement Association (PCA) Standards
  • Standard Specifications for Construction of Roads and Bridges on Federal Highway Projects 2003

Water Systems / Wastewater Systems

  • American Concrete Institute (ACI) Standards
  • American Concrete Pipe Association (ACPA) Standards
  • American Petroleum Institute (API) Standards
  • American National Standards Institute (ANSI) Standards
  • American Society of Civil Engineers (ASCE) Standards
  • American Society of Mechanical Engineers (ASME) Standards
  • American Society of Plumbing Engineers (ASPE) Standards
  • American Society of Sanitary Engineering (ASSE) Standards
  • American Water Works Association (AWWA) Standards
  • ASTM International Standards
  • Department of Environmental Health (DEH) Regulations and Standards
  • Department of Environmental Protection (DEP) Regulations and Standards
  • Environmental Protection Agency (EPA) Regulations and Standards
  • International Building Code (IBC) 2015
  • International Plumbing Code (IPC) 2015
  • National Association of Corrosion Engineers (NACE) Standards
  • National Association of Pipe Coating Applicators (NAPCA) Standards
  • National Electrical Manufacturers Association (NEMA) Standards
  • National Fire Protection Association (NFPA) Codes and Standards
  • National Fluid Power Association (NFPA) Standards
  • National Institute of Standards and Technology (NIST) Standards
  • National Pollution Discharge Elimination System (NPDES) Standards
  • National Pipe Fabrication Institute (NPFI) Standards
  • NSF International (Formerly National Sanitation Foundation) Codes and Standards
  • Occupational Safety and Health Administration (OSHA) Standards
  • Precast/Pre-Stressed Concrete Institute (PCI) Standards
  • Plumbing and Drainage Institute (PDI) Standards
  • Underwriters Laboratories (UL) Standards

Hazardous Materials

  • American National Standards Institute (ANSI) Standards
  • American Society of Civil Engineers (ASCE) Standards
  • ASTM International Standards
  • Chemical Safety Board (CSB) Standards
  • Department of Health and Human Services Standards
  • Environmental Protection Agency (EPA) Codes and Standards
  • General Services Administration (GSA) Standards
  • Hazardous Waste Operations and Emergency Response Standards
  • National Fire Protection Association (NFPA) Codes and Standards
  • National Institute of Health (NIH) Standards
  • Occupational Safety and Health Administration (OSHA) Standards
  • Pipeline and Hazardous Materials Safety Administration Standards



  • The Civil/Site/Utility design shall meet or exceed applicable Federal, State, and Local safety, health, and environmental codes and standards.
  • The Civil/Site/Utility design shall be compliant with all applicable OSHA requirements. Any potential hazards should be mitigated using engineered solutions.

Confined Space

  • Confined Spaces should be identified in the design phase and eliminated wherever possible.
  • Backflow Preventers should be located above grade or inside of a building rather than in a pit or below grade structure.

Site & Transportation

The following references are cited as they provide professional guidance for Site Design and Transportation Design within the National Park Service (NPS).

  • Special Regulations for Areas of the National Park System
  • Greening Federal Facilities
  • Park Road Standards
  • Alternative Transportation Systems Guidebook
  • Transportation Planning Guidebook
  • National Scenic Byways Program

Utility Appurtenances

  • Plumbing Fixtures: All plumbing fixtures and fittings shall be low-flow, water conserving, conforming to the requirements stated in the 1992 Energy Policy Act.
  • Backflow Prevention: Comply with each park's backflow prevention regulations. As minimums, provide double check valve assemblies on all fire services or other water service connections that may have the potential for cross-connection. Provide reduced pressure zone backflow assemblies on all water service connections that may produce hazardous backflow conditions.
  • Metering: All domestic and reclaimed water service lines to each building shall be metered in accordance with NPS Staff Directive 78-10.
  • Water Pressure: Pressure reducing valves shall be provided as necessary to limit water pressure in buildings to 80 psig maximum. Booster pumps shall be provided as necessary to maintain a minimum of 25 psig at the furthest plumbing fixture at design flow rate conditions.

Government Directives & Government Standards

National Park Service (NPS) Requirements

NPS Management Policies 2006 - The Guide to Managing the National Park System

Director's Orders (DOs)

Handbooks, Reference Materials (RMs), Strategies, Plans, & other Professional Materials


Executive Orders (EOs)

  • EO 11988 - Floodplain Management (pdf)
    • Requires Federal agencies to determine if their actions will occur in a floodplain.
    • Requires Federal agencies to consider alternatives to development within floodplains.
  • EO 11990 - Protection of Wetlands
    • Directs all Federal agencies to minimize the destruction, loss, or degradation of wetlands; and preserve and enhance the natural beneficial values of wetlands in the conduct of the agency's responsibilities for: acquiring, managing, and disposing of Federal lands and facilities; providing Federally undertaken, financed, or assisted construction and improvements; and conducting Federal activities and programs affecting land use, including but not limited to water and related land resources planning, regulating, and licensing activities.
  • EO 12072 - Federal Space Management
    • Where not prohibited, the process for meeting Federal space needs shall give first consideration to a centralized community business area and adjacent areas of similar character, including other specific areas which may be recommended by local officials.
  • EO 13006 - Locating Federal Facilities on Historic Properties in Our Nation's Central Cities (pdf)
    • Encourages the Location of Federal Facilities on Historic Properties in Our Central Cities.
  • EO 13423 - Strengthening Federal Environmental, Energy, and Transportation Management
    • Revoked and replaced with EO 13693 - see below.
  • EO 13514 - Federal Leadership in Environmental, Energy, and Economic Performance
    • Revoked and replaced with EO 13693 - see below.
  • EO 13693 - Planning for Federal Sustainability in the Next Decade (pdf)
    • Replaces EO 13514 and EO 13423 and revokes Presidential Memorandum Dated December 5th, 2013 Federal Leadership on Energy and Management.
    • The goal of EO 13693 is to maintain Federal leadership in sustainability and greenhouse gas emission reductions.
    • Where life cycle cost effective, Agency wide, building energy intensity (Btuh/sq.ft.) shall be reduced by 2.5% annually through the end of fiscal year 2025.
    • Establishes Agency requirements for clean energy, renewable electric energy, and alternative energy.
    • Requires a reduction in potable and non potable water consumption.
    • Reduces greenhouse gases of agency fleet vehicles.
    • Establishes Agency goal of 15% of all buildings 5,000 sq.ft. or larger be net zero energy, waste, and water by fiscal year 2025.


Code of Federal Regulations (CFR)

  • 10 CFR - Energy
    • Part 51: Environmental Protection Regulations For Domestic Licensing and Related Regulatory Functions
    • Part 430: Energy Conservation Program for Consumer Products
    • Part 433: Energy Efficiency Standards for New Federal Commercial and Multi-Family High-Rise Residential Buildings
    • Part 434: Energy Code for New Federal Commercial and Multi-Family High Rise Residential Buildings
    • Part 435: Energy Efficiency Standards for New Federal Low-Rise Residential Buildings
    • Part 436 : Federal Energy Management and Planning Programs
  • 18 CFR - Conservation of Power and Water Resources
    • Part 12: Safety of Water Power Projects and Project Works
    • Part 410: Basin Regulations; Water Code and Administrative Manual; Part III - Water Quality Regulations
    • Part 415: Basin Regulations - Floodplain Regulations
    • Part 420: Basin Regulations - Water Supply Charges
    • Part 430: Ground Water Protection Area
    • Part 740: State Water Management Planning Program
  • 23 CFR - Highways
    • Part 470: Highway Systems
    • Part 620: Engineering
    • Part 625: Design Standards for Highways
    • Part 626: Pavement Policy
    • Part 627: Value Engineering
    • Part 635: Construction and Maintenance
    • Part 645: Utilities
    • Part 650: Bridges, Structures, and Hydraulics
    • Part 652: Pedestrian and Bicycle Accommodations and Projects
    • Part 655: Traffic Operations
    • Part 752: Landscape and Roadside Development
    • Part 771: Environmental Impact and Related Procedures
    • Part 772: Procedures for Abatement of Highway Traffic Noise and Construction Noise
    • Part 777: Mitigation of Impacts to Wetlands and natural Habitat
    • Part 924: Highway Safety Improvement Program
    • Part 970: National Park Service Management Systems
    • Part 1200: Uniform Procedures for State Highway Safety Programs
    • Part 1205: Highway Safety Programs
    • Part 1235: Uniform System for Parking for Persons with Disabilities
  • 29 CFR - Labor
    • Part 11: National Environmental Policy Act (NEPA) - Compliance Procedures
    • Part 14: Security Regulations
    • Part 1910: Occupational Safety and Health Standards
    • Part 1925: Safety and Health Standards for federal Service Contracts
    • Part 1926: Safety and Health Regulations for Construction
  • 36 CFR - Parks, Forests, and Public Property
    • Part 2: Resource Protection, Public Use and Recreation
    • Part 3: Boating and Water Use Activities
    • Part 4: Vehicles and Traffic Safety
    • Part 6: Solid waste Disposal Sites in Units of the National Park System
    • Part 7: Special Regulations in Areas of the National Park System
    • Part 13: National Park System Units in Alaska
    • Part 14: Rights-Of-Way
    • Part 60: National Register of Historic Places
    • Part 62: National Natural Landmarks Program
    • Part 68: The Secretary of the Interior Standards for the Treatment of Historic Properties
    • Part 71: Urban Park and Recreation Recovery Act
    • Part 220: National Environmental Policy Act (NEPA) Compliance
    • Part 221: Timber Management Plan
    • Part 251: Land Uses
    • Part 292: National recreation areas
    • Part 297: Wild and Scenic Rivers
    • Part 1002: Resource Protection, Public Use and Recreation
    • Part 1004: Vehicles and Traffic Safety
    • Part 1191: Americans with Disabilities Act (ADA), Accessibility Guidelines for Buildings and Facilities; Architectural Barriers Act (ABA) Accessibility Guidelines
  • 40 CFR - Protection of Environment
    • Part 25: Public Participation in Programs Under the Resource Conservation and Recovery Act, The Safe Drinking Water Act, and the Clean Water Act
    • Part 50: National Primary and Secondary Ambient Air Quality Standards
    • Part 61: National Emission Standards for Hazardous Air Pollutants
    • Part 116: Designation of Hazardous Substances
    • Part 122: EPA Administered Permit Programs - The National Pollutant Discharge Elimination System
    • Part 125: Criteria and Standards for the National Pollutant Discharge Elimination
    • Part 129: Toxic Pollutant Effluent Standards
    • Part 130: Water Quality Planning and Management
    • Part 131: Water Quality Standards
    • Part 133: Secondary Treatment Regulation
    • Part 141: National Primary Drinking Water Regulations
    • Part 143: National Secondary Drinking Water regulations
    • Part 144: Underground Injection Control Program
    • Part 165: Pesticide Management and Disposal
    • Part 204: Noise Emission Standards for Construction Equipment
    • Part 230: Section 404 Guidelines for Specification of Disposal Sites for Dredged or Fill Material
    • Part 260: Hazardous Waste Management Systems
    • Part 261: Identification and Listing of Hazardous Waste
    • Part 268: Land Disposal Restrictions
    • Part 270: The Hazardous Waste Permit Program
    • Part 280: Technical Standards and Corrective Action Requirements for Owners and Operators of Underground Storage Tanks (USTs)
    • Part 282: Approved Underground Storage Tank Programs
    • Part 370: Hazardous Chemical Reporting
    • Part 372: Toxic Chemical Release Reporting
    • Part 503: Standards for the Use or Disposal of Sewage Sludge
    • Part 712: Chemical Information Rules
    • Part 716: Health and Safety Data Reporting
    • Part 749: Water treatment Chemicals
    • Part 763: Asbestos
    • Part 1501: NEPA and Agency Planning
    • Part 1502: Environmental Impact Statements
  • 49 CFR - Transportation
    • Part 37: Transportation Services for Individuals with Disabilities (ADA)
    • Part 130: Oil Spill Prevention and Response Plans
    • Part 172: Hazardous Materials Tables and Communications, Emergency Response and Security Plans
    • Part 195: Transportation of Hazardous Liquids by Pipeline
    • Part 237: Bridge Safety Standards
    • Part 397: Transportation of Hazardous Materials
    • Part 614: Transportation Infrastructure Management
    • Part 1034: Routing of Traffic

Last updated: June 14, 2018