L103 Diving at Work Regulations 1997: Approved Code of Practice and Guidance (link)
This Approved Code of Practice and associated guidance provides practical advice and guidance on complying with the requirements of the Diving at Work Regulations 1997 (link).
This Second Edition has been updated to reflect changes in technology and industry practice. The most significant changes relate to:
Closed bell projects: Clarification of bell run duration is addressed and the requirement for a refreshment break has been included.
Fitness to dive: Further information has been provided for divers regarding medical treatment, medical conditions or medication being taken, that may make them unfit to dive.
Bell operations: Clarification of the requirements for a surface standby diver is provided.
Partial pressure of oxygen: The maximum recommended partial pressure of oxygen for breathing gases has been changed to 1.4 bar and there is new information on the use of decompression procedures requiring higher levels of oxygen.
Revisions have also be made in order to simplify the information, update the references and provide greater consistency across all of the Codes of Practice covering diving at work.
Source: HSE