This is health and safety from the employers point of view, rather than within the chemical engineering process. Requirements placed on the employer do vary from country to country. If you are employing people for the first time make sure you check out what you should be doing or not doing.
http://www.hse.gov.uk/
UK government site – Information and news about good practice in health
and safety at work
http://www.nohsc.gov.au/
National Occupational Health and Safety Commission of Australia
http://www.lawlink.nsw.gov.au/lawlink.nsf/pages/work
Injuries at work. New South Wales Australia.
http://www.hsa.ie/
Irish Health and Safety Authority site
http://www.osh.dol.govt.nz/
Web site for New Zealand’s Occupational Safety and Health Service of the Department
of Labour.
http://www.whsc.on.ca/
Canadian Workers Health and Safety Centre
http://www.lawrights.co.uk
Select ‘Health and Safety at Work’ (UK)
http://www.itcilo.it/english/actrav/telearn/osh/default.htm
Online guides to a variety of health and safety in the work place, topics.