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The National Heavy Vehicle Accreditation Scheme ( sets out standards to support improved safety in heavy vehicle industry. Specifically, the standard requires drivers to:

  • undergo regular health assessments to check if they meet the medical criteria
  • a focus on sleep disorders
  • check on substance abuse

Employers may request these health assessments to ensure that all drivers are medically fit and competent to perform their duties.

Health conditions that may affect a Heavy Haulage Truck driver’s ability include:

  • Vision problems
  • Heart disease
  • Sleep disorders
  • Diabetes
  • Psychiatric disorders
  • Neurological disorders
  • Age-related declines

For more information about Assessing Fitness to Drive standards for commercial vehicle drivers, visit the Austroads website (