Which regulation focuses on the safety of working equipment?

The regulation that focuses on the safety of working equipment is the Provision and Use of Work Equipment Regulations (PUWER). This regulation requires that all equipment provided for use at work is safe, suitable for the task, and properly maintained. It covers various aspects such as ensuring that work equipment is designed and constructed to be safe, considering the risks that equipment may pose to those who use it.

Under PUWER, employers must ensure that equipment is regularly maintained and that users are properly trained and instructed on its safe use. This regulation aims to prevent accidents that may arise from faulty or inappropriate equipment, ultimately contributing to a safer working environment. The emphasis on safety for equipment means that employers must conduct risk assessments and ensure that any equipment used is suitable for the task and maintained in a safe condition.

The other options represent different health and safety regulations: RIDDOR concerns the reporting of injuries, diseases, and dangerous occurrences; COSHH deals with the hazards posed by substances; and HASAWA is the overarching health and safety legislation that ensures the welfare of employees at work. While all these regulations play critical roles in workplace safety, PUWER's specific focus on work equipment distinguishes it as the correct answer in this context.