A safe and healthy working environment will be promoted in public works project construction sites . public works contractors have been encouraged to set up more efficient safety management systems through the pay for safety scheme ( pfss ) and the independent safety audit scheme ( isas ) 政府以推广在工地建立安全和健康的工作环境为目标,鼓励公共工程承建商透过“支付安全计划”及“独立安全稽核计划” ,建立更高效率的安全管理系统。