50 Divisions refers to the 50 divisions of construction information, as defined by the Construction Specifications Institute (CSI)'s MasterFormat. Before 2004, MasterFormat consisted of 16 Divisions."50 Divisions" is the most widely used standard for organizing specifications and other written information for commercial and institutional building projects in the United States and Canada. and associated activities. Standardizing the presentation of such information improves communication among all parties involved in time.
MasterFormat 2004 Edition Divisions are:
PROCUREMENT AND CONTRACTING REQUIREMENTS GROUP:
Division 00 — Procurement and Contracting RequirementsSPECIFICATIONS GROUP
General Requirements Subgroup
Division 01 — General RequirementsFacility Construction Subgroup
Division 02 — Existing ConditionsDivision 03 — ConcreteDivision 04 — MasonryDivision 05 — MetalsDivision 06 — Wood, Plastics, and CompositesDivision 07 — Thermal and Moisture ProtectionDivision 08 — OpeningsDivision 09 — FinishesDivision 10 — SpecialtiesDivision 11 — EquipmentDivision 12 — FurnishingsDivision 13 — Special ConstructionDivision 14 — Conveying EquipmentDivision 15 — HVACDivision 16 — RESERVEDDivision 17 — TelecommunicationsDivision 18 — RESERVEDDivision 19 — RESERVEDFacility Services Subgroup:
Division 20 — RESERVED FOR FUTURE EXPANSIONDivision 21 — Fire SuppressionDivision 22 — PlumbingDivision 23 — Heating Ventilating and Air ConditioningDivision 24 — RESERVED FOR FUTURE EXPANSIONDivision 25 — Integrated AutomationDivision 26 — ElectricalDivision 27 — CommunicationsDivision 28 — Electronic Safety and SecurityDivision 29 — RESERVED FOR FUTURE EXPANSIONSite and Infrastructure Subgroup:
Division 30 — RESERVED FOR FUTURE EXPANSIONDivision 31 — EarthworkDivision 32 — Exterior ImprovementsDivision 33 — UtilitiesDivision 34 — TransportationDivision 35 — Waterways and Marine ConstructionDivision 36 — RESERVED FOR FUTURE EXPANSIONDivision 37 — RESERVED FOR FUTURE EXPANSIONDivision 38 — RESERVED FOR FUTURE EXPANSIONDivision 39 — RESERVED FOR FUTURE EXPANSIONProcess Equipment Subgroup:
Division 40 — Process IntegrationDivision 41 — Material Processing and Handling EquipmentDivision 42 — Process Heating, Cooling, and Drying EquipmentDivision 43 — Process Gas and Liquid Handling, Purification and Storage EquipmentDivision 44 — Pollution Control EquipmentDivision 45 — Industry-Specific Manufacturing EquipmentDivision 46 — Water and Wastewater EquipmentDivision 47 — RESERVED FOR FUTURE EXPANSIONDivision 48 — Electrical Power GenerationDivision 49 — RESERVED FOR FUTURE EXPANSION