This recommended practice (RP) provides guidance to all stakeholders (e.g. employees@ managers@ supervisors@ contractors) on understanding@ recognizing and managing fatigue in the workplace. Owners and operators should establish policies and procedures to meet the purpose of this recommended practice. This RP was developed for refineries@ petrochemical and chemical operations@ natural gas liquefaction plants@ and other facilities such as those covered by the OSHA Process Safety Management Standard@ 29 CFR 1910.119. This document is intended to apply to a workforce that is commuting daily to a job location.