The Interior Lighting Campaign (ILC) is a joint effort by the US Department of Energy, the Building Owners and Managers Association International, the International Facility Management Association, and the Illuminating Engineering Society of North America. The ILC is a recognition and guidance program designed to help facility owners and managers take advantage of savings opportunities from high efficiency interior lighting, with a specific focus on troffer lighting and associated controls. Troffers are the ubiquitous rectangular fixtures recessed or mounted to the ceiling, and represent half of all commercial fluorescent fixtures.
New technologies for troffers allow for energy savings of 60 percent, and much more when coupled with lighting controls. The ILC offers resources and limited technical assistance to those who join, and the potential for awards to those whose sites demonstrate exemplary performance.