Occupational Health & Safety Engineering Standards

Review Design Standards General Statements before utilizing this web page.

On this page:
Building Codes & Industry Standards
Denver Service Center (DSC) Requirements
National Park Service (NPS) Requirements

Building Codes & Industry Standards

  • ANSI/ASSE (American National Standards Institute/American Society of Safety Engineers)
    • ANSI/ASSE A10.34 2001 (R2012) Protection of the Public on or Adjacent to Construction Sites
    • ANSI/ASSE A10.44 2014 Control of Energy Sources (Lockout/Tagout) for Construction and Demolition Operations
    • ANSI/ASSE Z244.1 2003 (R2014) Control of Hazardous Energy Lockout/Tagout and Alternative Methods
    • ANSI/ASSE Z359.0 2012 Definitions and Nomenclature Used for Fall Protection and Fall Arrest
    • ANSI/ASSE Z359.1 2016 Safety Requirements for Personal Fall Arrest Systems, Subsystems and Components
    • ANSI/ASSE Z359.11 2014 Safety Requirements for Full Body Harnesses
    • ANSI/ASSE Z359.12 2009 Connecting Components for Personal Fall Arrest Systems
    • ANSI/ASSE Z359.13 2013 Personal Energy Absorbers and Energy Absorbing Lanyards
    • ANSI/ASSE Z359.14 2014 Safety Requirements for Self-Retracting Devices for Personal Fall Arrest and Rescue Systems
    • ANSI/ASSE Z359.15 2014 Safety Requirements for Single Anchor Lifelines and Fall Arresters for Personal Fall Arrest Systems
    • ANSI/ASSE Z359.2 2017 Minimum Requirements for a Comprehensive Managed Fall Protection Program
    • ANSI/ASSE Z359.3 2017 Safety Requirements for Positioning and Travel Restraint Systems
    • ANSI/ASSE Z359.4 2013 Safety Requirements for Assisted-Rescue and Self-Rescue Systems, Subsystems and Components
    • ANSI/ASSE Z359.6 2016 Specifications and Design Requirements for Active Fall Protection Systems
    • ANSI/ASSE Z359.7 2011 Qualification and Verification Testing of Fall Protection Products
    • ANSI/ASSE Z490.1 2009 Criteria for Accepted Practices in Safety, Health, and Environmental Training
  • ASME (American Society of Mechanical Engineers)
    • ASME B30.20 2018 (INT October 2010 - May 2012) Below-the-Hook Lifting Devices
    • ASME B30.22 2016 Articulating Boom Cranes
    • ASME B30.26 2015 (INT June 2010 - June 2014) Rigging Hardware
    • ASME B30.3 2016 Tower Cranes
    • ASME B30.5 2014 Mobile and Locomotive Cranes
    • ASME B30.8 2015 Floating Cranes and Floating Derricks
    • ASME B30.9 2014 (INT February 2011 - November 2013) Slings
  • ASTM International
    • ASTM F855 2017 Standard Specifications for Temporary Protective Grounds to be Used on De-energized Electric Power Lines and Equipment
  • FHWA (Federal Highway Administration)
    • MUTCD (Manual on Uniform Traffic Control Devices)
  • IEEE (Institute of Electrical and Electronics Engineers)
    • IEEE 1048 2016 Guide for Protective Grounding of Power Lines
    • IEEE C2 2017 National Electrical Safety Code
  • NEMA (National Electrical Manufacturers Association)
    • NEMA Z535.2 2011 Environmental and Facility Safety Signs
  • NFPA (National Fire Protection Association)
    • NFPA 10: Standard for Portable Fire Extinguishers
    • NFPA 51B: Standard for Fire Prevention During Welding, Cutting, and Other Hot Work
    • NFPA 70: NEC (National Electrical Code)
    • NFPA 70E: Standard for Electrical Safety in the Workplace
    • NFPA 241: Standard for Safeguarding Construction, Alteration, and Demolition Operations
  • USACE (US Army Corps of Engineers)
    • Engineer Manual EM 385-1-1 Safety and Health Requirements Manual 2014

Denver Service Center (DSC) Requirements

  • The facility shall be compliant with OSHA (Occupational Safety & Health Administration) requirements.
  • Hazards shall be mitigated using engineered solutions.
  • Confined Spaces shall be eliminated wherever possible.
  • Follow the guidelines found in the most current edition of the United States (U.S.) Product Safety Commission's Public Playground Safety Handbook for new and modified playgrounds.
  • When a traffic gate that is rotated in a horizontal plane is in the position where it is parallel to traffic (indicating that the roadway is open), the outer end of the gate arm should be rotated to the downstream direction (from the perspective of traffic in the lane adjacent to the gate support) to prevent spearing if the gate is struck by an errant vehicle.


  • Best practices for Occupational Health and Safety are required. Guidance can found from:
    • ACGIH (American Conference of Governmental Industrial Hygienist)
    • AIHA (American Institute of Industrial Hygiene)
    • BCSP (Board of Certified Safety Professionals)
  • EM 385-1-1 - Safety and Health Requirements:
    • General guidance on creating accident prevention plans (APPs).
    • How to properly create activity hazard analysis (AHAs).

National Park Service (NPS) Requirements

Director's Orders (DOs)

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



Code of Federal Regulations (CFR)


Last updated: February 8, 2023

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