Projects, Missions, and Status

Construction of new facilities and major experimental equipment to advance the field of high energy physics. For more information with regard to how the Office of Science manages the construction and fabrication of projects, click here.

Intensity Frontier Projects CD Status* CD Date

LBNF/DUNE(Long Baseline Neutrino Facility/Deep Underground Neutrino Experiment)


September 1, 2016

Muon g-2 


August 20, 2015



July 14, 2016

Next Generation B Factory Detector Systems (Belle-II)


July 14, 2016 Finished

NuMI Off-Axis Electron Neutrino Appearance Experiment (NOvA)


September 23, 2014 Finished



December 22, 2014 Finished

Main INjector ExpeRiment for v-A (MINERvA)


June 28, 2010 Finished

Daya Bay Reactor Neutrino Experiment


August 20, 2012 Finished

Energy Frontier Projects CD Status* CD Date
High Luminosity LHC Accelerator Upgrade Project (HL-LHC AUP) CD-0 April 13, 2016
HL-LHC ATLAS Detector Upgrade CD-0 April 13, 2016
HL-LHC CMS Detector Upgrade CD-0 April 13, 2016

LHC ATLAS Detector Upgrade


November 12, 2014

LHC CMS Detector Upgrade


November 12, 2014

Cosmic Frontier Projects CD Status* CD Date
LUX-ZEPLIN (LZ) Dark Matter Experiment CD-3 February 9, 2017

Super CDMS-SNOLAB Dark Matter Exp't


December 21, 2015

Dark Energy Spectroscopic Instrument (DESI)


June 22, 2016

Large Synoptic Survey Telescope (LSST)


August 27, 2015 

Dark Energy Survey (DES)


June 04, 2012 Finished

Advanced Technology R&D Projects CD Status* CD Date

 Berkeley Lab Laser Accelerator (BELLA)


January 17, 2013 Finished

Accelerator Project for the Upgrade of the LHC (APUL)


March 27, 2014 Finished

Facility for Advanced Accelerator Experimental Tests (FACET)


January 31, 2012 Finished

FACET-II CD-2/3 June 8, 2018
Proton Improvement Project (PIP-II) CD-0 November 12, 2015

*The Office of Science requires that a series of high level, Critical Decisions (CDs) be made in order for a project to advance:

  • Critical Decision (CD) 0: Approve Mission Need
    A determination is made that there is a scientific case to pursue the project. Some of the possible alternative means of delivering the science are presented as well as a coarse estimate of the cost.
  • Critical Decision (CD) 1: Approve Alternative Selection and Cost Range
    One of the alternatives proposed in the CD-0 is selected and a credible cost range is established.
  • Critical Decision (CD) 2: Approve Performance Baseline
    The technical scope of work, the cost estimate, and the construction schedule is sufficiently well known that the project can be completed on the specified schedule and within the specified budget.
  • Critical Decision (CD) 3: Approve Start of Construction
    Engineering and design are sufficiently complete that construction, procurement, and/or fabrication may begin.
  • Critical Decision (CD) 4: Approve Start of Operations
    The project is ready to be turned over to the organization that will operate and maintain it. The criteria for this stage are defined in the Performance Baseline.