Question to the Department for Work and Pensions:

To ask the Secretary of State for Work and Pensions, what assessment his Department has made of the adequacy of regulatory protections against occupational exposure to respirable crystalline silica; whether he plans to review workplace exposure limits and enforcement arrangements in high-risk sectors including construction, stone working and manufacturing; what guidance has been issued to the Health and Safety Executive on inspections of workplaces where engineered stone or other high-silica materials are processed; what arrangements are in place to monitor the respiratory health of workers in occupations with elevated exposure risks; what support is available through Government schemes for workers diagnosed with silicosis linked to workplace exposure; and what further steps he will take to restrict or regulate engineered stone products with high crystalline silica content.

Great Britain has a well-established regulatory framework under the Control of Substances Hazardous to Health Regulations 2002 (as amended) (COSHH) that requires employers to control exposure to substances that can cause ill health, such as respirable crystalline silica (RCS). Under this framework the risk of exposure to RCS can be properly managed using recognised control measures meeting well established standards. This framework also requires the effectiveness of controls to be maintained and workers trained to use such controls. Employers must also ensure that employees who are, or are liable to be, exposed to RCS are under suitable health surveillance.

The current workplace exposure limit (WEL) for RCS has been in place in Great Britain since 1st October 2006. It provides a long-term exposure limit of 0.1 mg/m3. In 2020, the EU adopted the same limit as Great Britain. COSHH also requires that, regardless of any limit set for RCS, dutyholders must continuously strive to control exposure in line with the principles of good practice, as defined in Schedule 2A of the regulations. The Health and Safety Executive (HSE) has no plans to review the WEL for RCS.

HSE is taking a multi-phase approach to address the risk of silicosis from working with engineered stone. This includes inspection and enforcement activity combined with targeted research, the publication of guidance, and engagement with suppliers, trade associations, and other representative bodies. HSE inspectors make proportionate enforcement decisions that can include provision of advice, service of enforcement notices and prosecution, in line with HSE’s Enforcement Policy Statement and Enforcement Management Model.

In January 2025, HSE published guidance for installers of stone worktops and anyone who cuts or works with stone, outlining the steps necessary to control exposure risks. This guidance emphasises the importance of competent, trained staff and safe processes. Multi-lingual guidance has also been published for workers exposed to RCS. (https://workright.campaign.gov.uk/artificial-stone/).

The COSHH regulations require employers to ensure that employees who are, or are liable to be, exposed to RCS are under suitable health surveillance. The current health surveillance guidance states that if there is a risk of developing conditions, such as accelerated silicosis, the timing and performance of health surveillance should be adapted with suitable timescales if there is history of significant over-exposure to RCS.

HSE has not proposed restriction on the use of engineered stone as silica is a naturally occurring material and natural stone can have similar RCS content to engineered stone, as such restricting the use of engineered stone does not remove the risk to stoneworkers. HSE has undertaken research to investigate the use of lower silica products and is confident that lower silica products are as useable as high silica content products and pose a lower risk for workers. The range of lower silica products on the market has continued to increase and the take up of these low alternatives is growing reinforced by the wider sharing and promotion of HSE ’s research results and regulatory expectations for exposure control with trade associations, suppliers and employers.

People diagnosed with silicosis may be eligible to claim Industrial Injuries Disablement Benefit (IIDB). Silicosis is recognised as an industrial disease, and the level of benefit awarded is based on an assessment of the individual's degree of disablement by an independent medical professional. In some cases, additional allowances may also be available depending on individual circumstances.

Where the entitlement criteria are met, individuals may also be eligible for a lump‑sum payment under the Pneumoconiosis etc. (Workers’ Compensation) Act 1979, which provides further financial support for people with certain dust‑related diseases, including silicosis.