Skip to content

Search the knowledge portal

  • PublisherCIBSE
  • Product CodeCCL
  • Number of pages30
  • Publication DateOct 2003
  • ISBN9781903287323

CCL Commissioning Code L: Lighting


PDF Format







PDF Format






CCL Commissioning Code L: Lighting

The effective operation of lighting systems is dependent on proper commissioning. Commissioning enables the design to be fully realised which, for a good design, will lead to more productive and satisfied occupants and added competitiveness for the building owner. Commissioning of lighting is now an integral part of the requirements for new buildings and major refurbishments under Building Regulations Part L2.

Until now there has been no CIBSE Commissioning Code dedicated to lighting. The Code recognises that many key decisions relating to the construction process are taken at the very early stages of a project. The Code therefore gives the strongest encouragement to designers and clients to consider commissioning at the earliest stages, and to seek specialist input early in the life of the project. The Code also stresses that responsibilities for commissioning activities should be clearly assigned at the outset of the project, as the required tasks may be shared among a number of consultants, contractors and manufacturers.

CIBSE Commissioning Code L presents current standards of good commissioning practice in the form of recommendations and guidance. The Code acknowledges that it may be applied in a variety of contractual frameworks. Users will need to ensure that the use of the Code is considered when contractual arrangements are being made, to ensure that the recommendations of the Code are not in conflict with those of the contract.

A full set of 7 CIBSE Commissioning Codes can be purchased in hard copy format here for A SPECIAL PRICE.


L0 Introduction
L0.1 Scope
L0.2 Purpose
L0.3 Definitions
L0.4 The importance of commissioning
L0.5 Electrical safety
L0.6 Lighting commissioning
L0.7 Lighting controls

L1 Commissioning project management
L1.1 Forming a commissioning management team
L1.2 Commissioning activities
L1.3 Commissioning method statements
L1.4 Commissioning plan or timetable

L2 Pre-commissioning (preliminary) checks
L2.1 General
L2.2 State of the system
L2.3 Pre-commissioning certificate

L3 Commissioning
L3.1 Interior lighting
L3.2 Emergency lighting
L3.3 Exterior lighting
L3.4 Lighting controls
L3.5 Relationship between lighting and shading
L3.6 Measurement of illuminance

L4 System handover
L4.1 Witnessing arrangements
L4.2 Commissioning documentation
L4.3 Operator training

L5 Post-occupancy checks

References and Bibliography

Appendix LA1: Hypothetical examples of lighting commissioning
Appendix LA2: Checklists for the commissioning of lighting systems
Appendix LA3: Example commissioning method statement for lighting system with automatic controls
Appendix LA4: Sample completion certificates
Appendix LA5: Safety issues
Appendix LA6: Notes concerning the design of lighting and lighting control systems



Authors: Hilary Graves (BRE Environment; consultant) & Peter Phillipson (Future Group Lighting)

Steering Committee
Chair: John Aston (Philips Lighting)
Members: Alan Aldridge (Electrical Systems Trade Association); Philip Buckle (Electrical Contractors’ Association); Jonathan David (The Society of Light and Lighting); Dr Hywel Davies (CIBSE Research Manager); Andrew Ford (Fulcrum Consulting, for DTI); Neil Jones (Ex-Or); Stewart Langdown (Tridonic); Derek MacMillan (ETAP Lighting); Mike Simpson (Concord:Marlin); Anthony Slater (BRE Environment)