NSW has become the first state to protect workers experiencing declining mental health as a result of burnout, traumatic injury and workplace harassment.

New changes to the state's work health and safety laws came into effect in October, recognising psychosocial hazards in the workplace and requiring employers to manage risks.

Ms Mann said businesses were already implementing the new psychosocial hazard laws, designed to provide workplaces with clarity on their obligations and specify control measures.

"Psychosocial risks and hazards can cause a stress response leading to psychological or physical harm," she said.

"They can stem from the work itself in the way it is designed and managed, from hazardous working environments, equipment use and social factors in the workplace."

Regulations to improve record keeping and operator training for amusement devices and passenger ropeways have also changed.

The changes to regulations for the amusement industry follow a surge in investigations, including an incident at a Sydney show where a four-year-old boy was not strapped in properly to a ride.

"At the Sydney Easter Show this year we saw what can happen quickly on amusement rides," Head of SafeWork NSW Natasha Mann said.

"By putting in place greater requirements for training and more robust reporting we will see operators required to lift industry standards."

The changes come alongside the establishment of SafeWork NSW's Respect@Work Taskforce, the state government's response to the Respect@Work Report on Sexual Harassment in the Workplace.