Progress to date includes: � increased awareness of respiratory health responsibilities through regular feedback to management and employee and contractor work groups, individual interviews with employees and managers, and training initiatives � the development of a standard medical protocol for respiratory health management and its implementation across our aluminium smelters � a peer review of program protocol by international experts in occupational asthma in the aluminium industry (medical tests of respiratory health, diagnostic criteria and respiratory protection programs are referenced to international standards) � an independent audit of the quality of spirometry (measurement of lung capacity) practices � a review of the respiratory protection program to allow improvement plans to be developed, which are currently being implemented through the introduction of improved respirator filters, fit testing, respirator servicing and training.