User Guide to Thresholds and Classifications under the HSNO Act
The User Guide to Thresholds and Classifications under the HSNO Act has been revised (March 2008) and is only available in electronic form.
The new document and a preface is available in a number of electronic formats please click here to go to the index page for the download options.
A list of the main changes to the 2001 version is also available,
see the following document:
Significant changes to v1.0 [Doc 61kb]
Significant changes to v1.0 [PDF 126kb]