Many of the public health experts consulted during phase one of the project indicated that they were keen to continue their engagement. Most were positive about the project. They identified a range of practical applications for a public health classification that extended far beyond its uses for reporting public health activity and expenditure. The consultation process also brought to light a variety of issuesincluding areas of basic disagreement about the nature and boundaries of public health practice-that warrant more work. These are set out throughout this report in boxes.