Regulation VII was a proposed ordinance to control air pollution within Los Angeles County, California. This draft includes annotations by Arnold O. Beckman, who at the time was a member of the Chamber of Commerce and chairman of its Air Pollution Control Committee.
“Regulation VII (Draft) with Arnold O. Beckman's Comments,” 1955. Beckman Historical Collection, Box 1, Folder 30. Science History Institute. Philadelphia. https://digital.sciencehistory.org/works/kd17ct79h.