California Code, Health and Safety Code - HSC § 39941

(a) The advisory group shall consist of an even number of members, not to exceed 14, as determined by the boards of the South Coast Air Quality Management District and the Sacramento Metropolitan Air Quality Management District.

(b) The advisory group shall consist of recognized experts in the field of remote sensing and locomotive engine technology, and representatives of citizen community groups, representatives of the South Coast Air Quality Management District, and representatives of the Sacramento Metropolitan Air Quality Management District. The advisory committee may also include representatives of the Union Pacific Railroad and the Burlington Northern Santa Fe Railway.

(c) The advisory group shall be appointed by the South Coast Air Quality Management District and the Sacramento Metropolitan Air Quality Management District. If the Union Pacific Railroad and Burlington Northern Santa Fe Railway choose to participate, 50 percent of the members of the advisory group shall be appointed by the Union Pacific Railroad and Burlington Northern Santa Fe Railway and 50 percent shall be appointed by the South Coast Air Quality Management District and the Sacramento Metropolitan Air Quality Management District.