CPI Index

CPI - An Explanation
Co-ordinated Production Information (CPI)

The RIBA, RICS, BEC, and ACE, at the request of Government, set up a Co-ordinating Committee for Project Information (CCPI). The aim of CCPI was to prepare practical guidance for designers that would help to overcome the deficiencies in project information revealed by the on-going work being done at BRE on production drawings and quality on site.
In 1987 CCPI published the following Co-ordinated Production Information (CPI) documents:

  • Code of Procedure for Production Drawings
  • Code of Procedure for Project Specification
  • Common Arrangement of Work Sections (CAWS)

At the same time a new edition of the Standard Method of Measurement (SMM7) was published, it being co-ordinated with the new CPI conventions. The CPI Codes were widely recognised for their authoritative guidance on good practice. Sir Michael Latham, in his report 'Constructing the Team', said: 'CPI is a technique which should have become normal practice years ago'. CCPI has since been re-constituted as the Construction Project Information Committee (CPIC), it's role being to maintain and promote the use of the CPI Codes. CAWS was revised and republished in 1998. This Code, covering both drawings and specification, replaces the separate 1987 Codes on Production Drawings and Project Specification.

"Best" Practice vs "Good" Practice

Case studies identified with a adjacent to the subject are considered "Best" practice.
Other case studies are considered "Good" practice.
See Case Study Index for a detailed explanation of the system.



A -   Preliminaries/General Conditions
B -   Complete Buildings
C -   Demolition/Alteration/Renovation
D -   Groundwork
E -   In Situ Concrete/Large Precast Concrete
F -   Masonry

G -   Structural/Carcassing Metal/Timber
H -   Cladding/Covering
J -   Waterproofing
K -   Linings/Sheathing/Dry Partitioning
L -   Windows/Doors/Stairs
M -   Surface Finishes
N -   Furniture/Equipment
P -   Building Fabric Sundries
Q -   Paving/Planting/Fencing/Site Furniture
R -   Disposal Systems
S -   Piped Supply Systems
T -   Mechanical Heating/Cooling/Refrigeration Systems
U -   Ventilation/Air Conditioning Systems
V -   Electrical Supply/Power/Lighting Systems
W -   Communications/Security/Control Systems
X -   Transport Systems

Y -   Mechanical and Electrical Services Measurement