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Categorical Exclusion Determinations: B6.3

Existing Regulations

B6.3: Improvements to environmental control systems
Improvements to environmental monitoring and control systems of an existing building or structure (such as changes to scrubbers in air quality control systems or ion-exchange devices and other filtration processes in water treatment systems), provided that during subsequent operations (1) any substance collected by the environmental control systems would be recycled, released, or disposed of within existing permitted facilities and (2) there are applicable statutory or regulatory requirements or permit conditions for disposal, release, or recycling of any hazardous substance or CERCLA-excluded petroleum or natural gas products that are collected or released in increased quantity or that were not previously collected or released.

Previous Regulations

Categorical Exclusion Determinations dated before November 14th, 2011 were issued under previous DOE NEPA regulations. See the Notice of Final Rulemaking (76 FR 63763, 10/13/2011) for information changes to this categorical exclusion.


  • June 9, 2015

    Advanced Test Reactor Cold Waste Collection Tank 670-M-186 Vessel Replacement
    CX(s) Applied: B6.3
    Date: 06/09/2015
    Location(s): Idaho
    Offices(s): Nuclear Energy

  • April 1, 2014

    S8G Prototype Refueling Overhaul
    CX(s) Applied: B1.3, B1.5, B1.7, B1.14, B1.30, B1.31, B2.1, B2.4, B2.5, B6.3
    Date: 04/01/2014
    Location(s): New York
    Offices(s): Naval Nuclear Propulsion Program

  • July 11, 2013

    Replacement Ventilation System for the Main Plant Process Building
    CX(s) Applied: B6.3
    Date: 07/11/2013
    Location(s): New York
    Offices(s): West Valley Demonstration Project

  • December 9, 2011

    Install Formed Core Sampler in Saltstone Disposal Facility Vault 2
    CX(s) Applied: B6.3
    Date: 12/09/2011
    Location(s): South Carolina
    Offices(s): Savannah River Operations Office

  • September 22, 2010

    Hawaii Energy Sustainability Program (Subtask 2.4.1: Sub to Real Green Power (RGP))
    CX(s) Applied: A9, A11, B1.24, B3.6, B3.8, B3.11, B5.1, B6.3
    Date: 09/22/2010
    Location(s): Honolulu, Hawaii
    Office(s): Energy Efficiency and Renewable Energy, National Energy Technology Laboratory

  • September 9, 2010

    Issaquah Highlands Zero Energy Affordable Housing
    CX(s) Applied: A9, B2.2, B2.5, B5.1, B6.3
    Date: 09/09/2010
    Location(s): Seattle, Washington
    Office(s): Energy Efficiency and Renewable Energy, National Energy Technology Laboratory

  • July 23, 2010

    Holy Cross Hospital Lighting Retrofit
    CX(s) Applied: A9, B2.2, B2.5, B5.1, B6.3
    Date: 07/23/2010
    Location(s): Chicago, Illinois
    Office(s): Fossil Energy, National Energy Technology Laboratory

  • May 11, 2010

    Connecticut Clean Cities Future Fuels Project - Fairfield
    CX(s) Applied: B5.1, B6.3
    Date: 05/11/2010
    Location(s): Fairfield, Connecticut
    Office(s): Energy Efficiency and Renewable Energy, National Energy Technology Laboratory

  • April 2, 2010

    Weirbox Installation
    CX(s) Applied: B1.6, B1.13, B2.5, B3.1, B5.4, B6.3
    Date: 04/02/2010
    Location(s): Casper, Wyoming
    Office(s): RMOTC

  • November 6, 2009

    Spokane Tribe of the Spokane Reservation Energy Efficiency Retrofits
    CX(s) Applied: B2.5, B5.1, B6.3
    Date: 11/06/2009
    Location(s): Washington
    Office(s): Energy Efficiency and Renewable Energy