"[T]he first general orders on safety ... were adopted by the Industrial commission on May 3, 1912, ... The general orders on safety were revised in 1915 by the original committee on safety and sanitation standards. ... The revised orders ... were adopted by the Industrial commission on May 28, 1915, and became effective on April 29, 1915. The order on car stakes and binders became effective on January 28, 1916."--Introduction, page 4 and 5.