Engine, Fuel, and Emissions Engineering, Inc. (EF&EE) is a research, development, and consulting firm specializing in motor vehicle emissions and emissions control. EF&EE was founded in 1990 and incorporated as a California corporation in 1992. The company is 100% employee-owned. EF&EE’s founder, Christopher Weaver, P.E. has served as President of the company and in responsible charge of EF&EE’s engineering work since its inception. Mr. Weaver holds California Professional Mechanical Engineer’s license no. M23320.
For most of its 20-year history, EF&EE’s primary business was consulting on the measurement and control of air pollutant emissions from motor vehicles and other mobile sources. This included extensive work for the World Bank, UNDP, U.S. AID and other agencies – advising on emission control strategies and air quality programs in Mexico, Thailand, Egypt and other developing countries. In the course of this work, EF&EE’s staff literally "wrote the book" on strategies for controlling motor vehicle emissions in developing countries.
Research and development of on-board emission measurement systems began in 1994, and led to commercial sales of RAVEM systems beginning in 2003. EF&EE also provides on-board emission measurements as a service, using the RAVEM system. These have included programs to develop emission factors and/or evaluate emission control technologies on ferryboats, diesel and gas-turbine locomotives, tractor-trailers, school buses, natural gas and diesel garbage trucks, container cranes, and earthmoving machinery.
Studies of selective catalytic reduction systems conducted for the U.S. EPA and American Petroleum Institute in 2000 led EF&EE to become involved in the commercialization of SCR retrofit technology beginning in 2003. Sales of EF&EE’s Compact SCR™ systems for marine vessels began in 2007, and for stationary generating sets in 2009. Presently, 16 Compact SCR™ systems are operating on ferryboats in California; a demonstration on a passenger locomotive is also under way.
As a consultancy, EF&EE has particularly strong experience and qualifications in the following areas:
EF&EE’s consulting work inside the U.S. has focused on diesel emission control technology and policies, and on alternative fuels. EF&EE carried out numerous studies of emission control technologies and costs in support of various EPA rulemakings. A major study for the California Air Resources Board assessed the feasibility of emission control for locomotives, and proposed an innovative “bubble” approach to limiting railway emissions. EF&EE assisted the U.S. Justice Department in its landmark “defeat device” case involving in-use emissions from heavy-duty diesel engines, which resulted in the largest penalty settlement ever imposed under the Clean Air Act.
In work for the Gas Research Institute and Natural Gas Vehicle Coalition, EF&EE staff helped to map the research and development programs leading to today’s successful heavy-duty natural gas engines, and provided technical support for the development of appropriate emission standards and test procedures. They have played an active role in the development of NGV codes and standards, both in the U.S. and internationally, and have advised on the feasibility, design, and implementation of NGV programs around the world. LPG, ethanol, and diesel emulsion fuels and the phaseout of leaded gasoline have been other areas of significant involvement.