Continued uncontrolled exposure to lead can cause kidney damage; nerve and brain damage; and infertility.The Control of Lead at Work Regulations 2002 (CLAW) apply to any kind of work activity where there is a risk of exposing workers and anyone else to lead. The lead must be in a form that can be inhaled, ingested or absorbed through the skin. The main industries affected by the regulations are lead smelting, refining and casting, battery manufacture, shipbuilding, glassworks, potteries, waste recycling and demolition firms.