A notice in the newspaper from the JCAHO announcing their certification program, 2003. Ukiah Daily journal, 9 July 2003. The JCAHO led the movement to push “pain management medications”.
The basis of the training and certification they talk about here is discussed in Improving the Quality of Pain Management Through Measurement and Action
Some have accused the JCAHO of pushing too hard on OPR use (and for less than stellar reasons). See JCAHO and the Opioid Epidemic