CSI Divisions

Division 01

General Requirements

Division 02

Existing Conditions

Division 03

Concrete

Division 04

Masonry

Division 05

Metals

Division 06

Wood, Plastic, and Composites

Division 07

Thermal and Moisture Protection

Division 08

Openings

Division 09

Finishes

Division 10

Specialties

Division 11

Equipment

Division 12

Furnishings

Division 13

Special Construction

Division 14

Conveying Equipment

Divisions 15-20

Reserved (Facilities Construction Subgroup)

Division 21

Fire Suppression

Division 22

Plumbing

Division 23

Heating, Ventilating, and Air Conditioning

Divisions 24 & 29

Reserved (Facility Services Subgroup)

Division 25

Integrated Automation

Division 26

Electrical

Division 27

Communication

Division 28

Electronic Safety and Security

Divisions 30 & 36-39

Reserved (Site and Infrastructure Subgroup)

Division 31

Earthwork

Division 32

Exterior Improvements

Division 33

Utilities

Division 34

Transportation

Division 35

Waterway and Marine Construction

Division 40

Process Integration

Division 41

Material Processing and Handling Equipment

Division 42

Process Heating, Cooling, and Drying Equipment

Division 43

Process Gas and Liquid Handling, Purification, and Storage Equipment

Division 44

Pollution Control Equipment

Division 45

Industry-Specific Manufacturing Equipment

Divisions 46, 47, 49

Reserved

Division 48

Electrical Power Generation