CONSTRUCTION BUYERS’ GUIDE
Division 27 – Communications
27 00 00 – Communications
27 10 00 – Structured Cabling
27 20 00 – Data Communications
27 30 00 – Voice Communications
27 40 00 – Audio-Video Communications
27 50 00 – Distributed Communications
and Monitoring Equipment
27 60 00 – Wireless Transceivers
Division 28 – Electronic Safety
and Security
28 00 00 – Electronic Safety and Security
28 10 00 – Electronic Access Control
and Intrusion Detection
28 20 00 – Electronic Surveillance
28 30 00 – Electronic Detection and Alarm
28 40 00 – Electronic Monitoring and Control
Division 31 – Earthwork
31 00 00 – Earthwork
31 10 00 – Site Clearing
31 20 00 – Earth Moving
31 30 00 – Earthwork Methods
31 40 00 – Shoring and Underpinning
31 50 00 – Excavation Support and Protection
31 60 00 – Special Foundations and
Load-Bearing Elements
31 70 00 – Tunneling and Mining
Division 32 – Exterior Improvements
32 00 00 – Exterior Improvements
32 10 00 – Bases, Ballasts and Paving
32 30 00 – Site Improvements
32 70 00 – Wetlands
32 80 00 – Irrigation
32 90 00 – Planting
Division 33 – Utilities
33 00 00 – Utilities
33 10 00 – Water Utilities
33 20 00 – Wells
33 30 00 – Sanitary Sewerage Utilities
33 40 00 – Storm Drainage Utilities
33 50 00 – Fuel Distribution Utilities
33 60 00 – Hydronic and Steam Energy Utilities
33 70 00 – Electrical Utilities
33 80 00 – Communications Utilities
Division 34 – Transportation
34 00 00 – Transportation
34 10 00 – Guideways/Railways
34 20 00 – Traction Power
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and competencies to exceed the most
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www.nelsonriver.com
2021 CARM MEMBERSHIP DIRECTORY & BUYERS’ GUIDE 43
/www.nelsonriver.com