A new document on this topic is currently being prepared for inclusion in the PPL.  Pending approval and publication of the new entry, information on this topic is available at

http://www.uq.edu.au/ohs/PFE/PF-Lock-Out-Tag-Out-Guideline.pdf

Custodians
Director, Occupational Health and Safety Mr Jim Carmichael
Director, Property and Facilities Mr Steven Dickson