Being fit for duty, which takes in physical health, mental wellbeing, alertness and freedom from impairment by fatigue, illness, drugs or alcohol, is foundational under ACA fatigue. The operator's systems ensure that a medical practitioner certifies each driver fit to drive a heavy vehicle under Austroads' Assessing Fitness to Drive (or an equivalent the NHVR approves), with assessment for sleep disorders and other fatigue-related health risks, examined at least once every three years up to age 49 and every year from age 50; that drivers get further in-service assessment, review or referral where health, fatigue indicators or safety performance may bear on fitness; that drivers judge their own fitness before and during work and tell the operator when they cannot safely continue; that lifestyle, health and medical factors affecting fatigue are dealt with; and that medical advice informs the allocation of work. Health and wellbeing are run as ongoing risk factors, with information and support for good sleep and general wellbeing, and where operations involve two-up driving or overnight rest in the vehicle, specific arrangements make the rest real and restorative. Five things are looked for: systems confirm fitness for duty before and during work, taking in health, fatigue, illness and impairment; medical fitness requirements are met and managed to the stated standards, including periodic assessment and sleep-related risks; drivers are required and helped to self-assess and to report when unfit; medical advice and health information feed work allocation decisions; and arrangements promote driver health and wellbeing as part of managing fatigue.
The graph holds this control, the 0 it maps to, and the evidence behind each claim, over MCP and REST.