Tags
Tags are keywords or labels that categorize your topics with other similar topics. Using the right tags makes it easier for others to find and answer your question.
fuel-cells
Omniclass: 21-04 50 10 40
stress-instrumentation
Omniclass: 21-06 10 80 10
perimeter-insulation
Omniclass: 21-01 40 90 10
aquariums
Omniclass: 21-06 10 50 40
ground-freezing
Omniclass: 21-01 90 30 60
pedestrian-tunnels
Omniclass: 21-07 90 10 20
landscaping-activities
Omniclass: 21-07 20 80 80
electrical-substations
Omniclass: 21-07 40 10 30
hospitality-equipment
Omniclass: 21-05 10 30 50
site-screening-devices
Omniclass: 21-07 20 60 80
interiors
Omniclass: 21-03 00 00
exterior-louvers
Omniclass: 21-02 20 70 10
interior-grilles-and-gates
Omniclass: 21-03 10 40
earth-movement-monitoring
Omniclass: 21-06 10 80 60
turf-and-grasses
Omniclass: 21-07 20 80 20
sanitary-sewerage-equipment
Omniclass: 21-04 20 20 10
loading-dock-equipment
Omniclass: 21-05 10 10 50
site-diesel-fuel-distribution
Omniclass: 21-07 30 60 40
site-preparation
Omniclass: 21-07 10
raft-foundations
Omniclass: 21-01 10 20 60
exterior-walls
Omniclass: 21-02 20 10
building-envelope-access
Omniclass: 21-04 10 80 50
interior-screens
Omniclass: 21-03 10 10 70
equipment
Omniclass: 21-05 10
vertical-conveying-systems
Omniclass: 21-04 10 10
vacuum-systems
Omniclass: 21-04 20 60 20
amusement-park-structures-and-equipment
Omniclass: 21-06 10 50 50
physical-decontamination
Omniclass: 21-07 10 50 10
air-to-air-energy-recovery
Omniclass: 21-04 30 60 60
parking-lots
Omniclass: 21-07 20 20
heating-system-supplementary-components
Omniclass: 21-04 30 20 90
supply-air
Omniclass: 21-04 30 60 10
site-fuel-distribution
Omniclass: 21-07 30 60
passenger-loading-bridges
Omniclass: 21-04 10 30 50
interior-access-doors-and-panels
Omniclass: 21-03 10 30 80
special-function-construction
Omniclass: 21-06 10 30
hazardous-waste-drum-handling
Omniclass: 21-07 10 50 50
conveyors
Omniclass: 21-04 10 50 40
water-intrusion-detection-and-alarm
Omniclass: 21-04 70 50 60
photographic-processing-equipment
Omniclass: 21-05 10 30 60
tower-demolition
Omniclass: 21-06 30 10 30
interior-swinging-doors
Omniclass: 21-03 10 30 10
storm-drainage-piping
Omniclass: 21-07 30 30 20
roof-decks,-slabs,-and-sheathing
Omniclass: 21-02 10 20 20
compartments-and-cubicles
Omniclass: 21-03 10 90 25
grading
Omniclass: 21-07 10 70 10
superstructure
Omniclass: 21-02 10
stormwater-drainage-piping
Omniclass: 21-04 20 30 20
traffic-bearing-horizontal-enclosures
Omniclass: 21-02 30 40
selective-demolition
Omniclass: 21-06 30 30
escalators
Omniclass: 21-04 10 10 30
exterior-vertical-enclosures
Omniclass: 21-02 20
other-equipment
Omniclass: 21-05 10 90
methane-mitigation
Omniclass: 21-01 60 20 50
slab-trenches
Omniclass: 21-01 40 30
selective-interior-demolition
Omniclass: 21-06 30 30 30
platform-stage-floors
Omniclass: 21-03 10 60 30
outside-air
Omniclass: 21-04 30 60 40
office-equipment
Omniclass: 21-05 10 30 75
athletic-equipment
Omniclass: 21-05 10 70 50
information-specialties
Omniclass: 21-03 10 90 20
site-communications-distribution
Omniclass: 21-07 50 10 30
specialty-suspended-ceilings
Omniclass: 21-03 10 70 50
facility-distribution-systems-supplementary-components
Omniclass: 21-04 30 50 90
building-support-plumbing-systems
Omniclass: 21-04 20 30
utility-septic-tanks
Omniclass: 21-07 30 20 40
athletic-and-recreational-special-construction
Omniclass: 21-06 10 60
interior-sliding-doors
Omniclass: 21-03 10 30 25
standard-foundation-supplementary-components
Omniclass: 21-01 10 10 90
interior-doors
Omniclass: 21-03 10 30
excavation-support
Omniclass: 21-01 90 30
interior-partitions
Omniclass: 21-03 10 10
audio-video-systems
Omniclass: 21-04 60 30 10
carpeting
Omniclass: 21-03 20 30 75
integrated-automation-control-of-electronic-safety-and-security-systems
Omniclass: 21-04 80 10 80
plaster-and-gypsum-board-finish
Omniclass: 21-03 20 50 10
sanitary-sewerage-piping
Omniclass: 21-07 30 20 20
ice-rinks
Omniclass: 21-06 10 50 60
building-support-plumbing-system-supplementary-components
Omniclass: 21-04 20 30 90
lighting-supplementary-components
Omniclass: 21-04 50 40 90
building-demolition
Omniclass: 21-06 30 10 10
site-furnishings
Omniclass: 21-07 20 60 25
material-handling
Omniclass: 21-04 10 50
furniture
Omniclass: 21-05 20 50 30
integrated-automation-control-of-electrical-systems
Omniclass: 21-04 80 10 60
athletic-flooring
Omniclass: 21-03 20 30 80
wall-foundations
Omniclass: 21-01 10 10 10
interior-construction
Omniclass: 21-03 10
carpeted-stair-finish
Omniclass: 21-03 20 40 75
moving-walks
Omniclass: 21-04 10 30 10
floor-decks,-slabs,-and-toppings
Omniclass: 21-02 10 10 20
fire-suppression
Omniclass: 21-04 40 10
exterior-soffits
Omniclass: 21-02 30 80 20
process-support-plumbing-system-supplementary-components
Omniclass: 21-04 20 60 90
overhead-exterior-enclosures
Omniclass: 21-02 30 80
earth-dams
Omniclass: 21-07 10 70 80
site-gas-distribution
Omniclass: 21-07 30 60 10
integrated-automation-control-of-communication-systems
Omniclass: 21-04 80 10 70
interior-panel-doors
Omniclass: 21-03 10 30 50
vents-and-hatches
Omniclass: 21-02 30 60 50
area-lighting
Omniclass: 21-07 40 50 10
raised-floor-construction
Omniclass: 21-03 10 60
site-communications-systems
Omniclass: 21-07 50 10
exterior-gates
Omniclass: 21-02 20 50 70
sound-and-vibration-control
Omniclass: 21-06 10 30 10
exterior-windows
Omniclass: 21-02 20 20
traffic-bearing-coatings
Omniclass: 21-02 30 40 10
exterior-grilles
Omniclass: 21-02 20 50 60
exterior-wall-interior-skin
Omniclass: 21-02 20 10 30
sanitary-sewerage-utilities
Omniclass: 21-07 30 20
integrated-automation-supplementary-components
Omniclass: 21-04 80 10 90
acoustical-wall-treatment
Omniclass: 21-03 20 10 80
integrated-automation-control-of-plumbing-systems
Omniclass: 21-04 80 10 40
interior-glazed-partitions
Omniclass: 21-03 10 10 20
pile-caps
Omniclass: 21-01 10 20 70
resilient-stair-finish
Omniclass: 21-03 20 40 50
contaminated-site-material-removal
Omniclass: 21-07 10 50 60
exterior-balcony-walls-and-railings
Omniclass: 21-02 20 80 50
supplementary-components
Omniclass: 21-04 70 90 10
toilet,-bath,-and-laundry-accessories
Omniclass: 21-03 10 90 40
thermal-cooling-storage
Omniclass: 21-04 30 30 50
ceiling-suspension-components
Omniclass: 21-03 10 70 90
animal-containment
Omniclass: 21-06 10 50 70
electronic-surveillance
Omniclass: 21-04 70 30
service-tunnels
Omniclass: 21-07 90 10 40
exterior-special-function-windows
Omniclass: 21-02 20 20 50
foundation-drainage
Omniclass: 21-01 60 10 10
agricultural-equipment
Omniclass: 21-05 10 90 30
exhaust-air
Omniclass: 21-04 30 60 30
site-development
Omniclass: 21-07 20 60
facility-remediation
Omniclass: 21-06 20
special-foundations
Omniclass: 21-01 10 20
safety-specialties
Omniclass: 21-03 10 90 60
airfield-lighting
Omniclass: 21-07 20 40 70
elevators
Omniclass: 21-04 10 10 10
modular-mezzanines
Omniclass: 21-06 10 10 70
roof-accessories
Omniclass: 21-02 30 20 10
soil-reinforcement
Omniclass: 21-07 10 70 50
electrical-transformers
Omniclass: 21-07 40 10 40
casework
Omniclass: 21-05 20 10 30
site-elements-demolition
Omniclass: 21-07 10 20
parking-lot-pavement
Omniclass: 21-07 20 20 10
site-clearing
Omniclass: 21-07 10 10
selective-building-demolition
Omniclass: 21-06 30 30 10
special-function-suspended-ceilings
Omniclass: 21-03 10 70 70
roof-appurtenances
Omniclass: 21-02 30 20
electronic-safety-and-security-supplementary-components
Omniclass: 21-04 70 90
underslab-drainage
Omniclass: 21-01 60 10 20
packaged-generator-assemblies
Omniclass: 21-04 50 10 10
seismic-instrumentation
Omniclass: 21-06 10 80 20
substructure-excavation
Omniclass: 21-01 90 10
fuel-piping
Omniclass: 21-04 30 10 10
interior-fixed-partitions
Omniclass: 21-03 10 10 10
lifts
Omniclass: 21-04 10 10 20
tunnel-construction-related-activities
Omniclass: 21-07 90 10 90
roadway-appurtenances
Omniclass: 21-07 20 10 40
decentralized-cooling
Omniclass: 21-04 30 30 70
wear-surfaces
Omniclass: 21-02 30 40 50
athletic,-recreational,-and-playfield-areas
Omniclass: 21-07 20 50
electrical-distribution-system-instrumentation-and-controls
Omniclass: 21-07 40 10 90
exterior-fabrications
Omniclass: 21-02 20 80 70
call-accounting
Omniclass: 21-04 60 20 40
utility-demolition
Omniclass: 21-07 10 20 10
recreational-equipment
Omniclass: 21-05 10 70 60
general-purpose-electrical-power-supplementary-components
Omniclass: 21-04 50 30 90
integrated-automation-control-of-fire-suppression-systems
Omniclass: 21-04 80 10 30
fences-and-gates
Omniclass: 21-07 20 60 20
tree-and-shrub-removal-and-trimming
Omniclass: 21-07 10 10 30
tunnels
Omniclass: 21-07 90 10
wiring-devices
Omniclass: 21-04 50 30 50
walls-for-subgrade-enclosures
Omniclass: 21-01 20 10
commercial-laundry-and-dry-cleaning-equipment
Omniclass: 21-05 10 30 35
passivehaus
Passive house is a voluntary standard for energy efficiency in a building, which reduces the building's ecological footprint. It results in ultra-low energy buildings that require little energy for space heating or cooling.
stair-finishes
Omniclass: 21-03 20 40
refrigerated-display-equipment
Omniclass: 21-05 10 30 30
electrical-service-and-distribution-supplementary-components
Omniclass: 21-04 50 20 90
domestic-water-distribution-supplementary-components
Omniclass: 21-04 20 10 90
airfield-signaling-and-control-equipment
Omniclass: 21-07 20 40 80
flooring
Omniclass: 21-03 20 30
wall-and-door-protection
Omniclass: 21-03 10 90 35
heat-generation
Omniclass: 21-04 30 20 10
pits-and-bases
Omniclass: 21-01 40 40
transfer-switches
Omniclass: 21-04 50 10 70
athletic-areas
Omniclass: 21-07 20 50 10
masonry-flooring
Omniclass: 21-03 20 30 40
photovoltaic-collectors
Omniclass: 21-04 50 10 30
branch-wiring-for-lighting
Omniclass: 21-04 50 40 20
site-communications
Omniclass: 21-07 50
special-foundation-walls
Omniclass: 21-01 10 20 30
gabions
Omniclass: 21-07 10 70 60
equipment-screens
Omniclass: 21-02 20 10 60
video-surveillance
Omniclass: 21-04 70 30 10
flagpoles
Omniclass: 21-07 20 60 35
fire-protection-specialties
Omniclass: 21-04 40 30
special-construction
Omniclass: 21-06 10
fire-suppression-supplementary-components
Omniclass: 21-04 40 10 90
maintenance-equipment
Omniclass: 21-05 10 30 40
manufacturer-engineered-structures
Omniclass: 21-06 10 20 40
snow-melting
Omniclass: 21-04 30 70 10
turntables
Omniclass: 21-04 10 30 30
storage-specialties
Omniclass: 21-03 10 90 70
roofing-supplementary-components
Omniclass: 21-02 30 10 90
roof-windows-and-skylights
Omniclass: 21-02 30 60 10
electrical-switchgear-and-protection-devices
Omniclass: 21-07 40 10 50
vehicle-and-pedestrian-equipment
Omniclass: 21-05 10 10
transient-voltage-suppression
Omniclass: 21-04 50 80 70
foodservice-equipment
Omniclass: 21-05 10 30 80
electrical-service-and-distribution
Omniclass: 21-04 50 20
fire-protection
Omniclass: 21-04 40
planting-irrigation
Omniclass: 21-07 20 80 10
retaining-walls
Omniclass: 21-07 20 60 60
radon-mitigation
Omniclass: 21-01 60 20 10
integrated-automation-facility-controls
Omniclass: 21-04 80 10
site-communications-structures
Omniclass: 21-07 50 10 10
cathodic-protection
Omniclass: 21-04 50 80 40
power-filtering-and-conditioning
Omniclass: 21-04 50 10 60
fire-protection-cabinets
Omniclass: 21-04 40 30 10
ceiling-paneling
Omniclass: 21-03 20 50 20
fluid-applied-flooring
Omniclass: 21-03 20 30 70
exterior-wall-construction
Omniclass: 21-02 20 10 20
caissons
Omniclass: 21-01 10 20 20
rainwater-management
Omniclass: 21-02 30 20 70
site-electric-distribution-systems
Omniclass: 21-07 40 10
subgrade-enclosure-wall-supplementary-components
Omniclass: 21-01 20 10 90
vapor-retarder
Omniclass: 21-01 40 90 20
horizontal-openings
Omniclass: 21-02 30 60
soil-treatment
Omniclass: 21-01 90 40
selective-historic-demolition
Omniclass: 21-06 30 30 70
facility-potable-water-storage-tanks
Omniclass: 21-04 20 10 10
terrazzo-stair-finish
Omniclass: 21-03 20 40 60
fire-detection-and-alarm
Omniclass: 21-04 70 50 10
canopy-construction
Omniclass: 21-02 10 20 30
teller-and-service-equipment
Omniclass: 21-05 10 30 25
access-control-and-intrusion-detection
Omniclass: 21-04 70 10
sanitary-sewerage-utility-connection
Omniclass: 21-07 30 20 10
cooling-system-supplementary-components
Omniclass: 21-04 30 30 90
miscellaneous-electrical-systems
Omniclass: 21-04 50 80
special-facility-components
Omniclass: 21-06 10 50
facility-stormwater-drains
Omniclass: 21-04 20 30 30
lead-remediation
Omniclass: 21-06 20 10 30
interior-entrance-doors
Omniclass: 21-03 10 30 20
exterior-signage
Omniclass: 21-07 20 60 30
covers-and-shelters
Omniclass: 21-07 20 60 40
roof-structural-frame
Omniclass: 21-02 10 20 10
mud-slab
Omniclass: 21-01 40 90 50
site-gasoline-distribution
Omniclass: 21-07 30 60 30
vehicle-fare-collection
Omniclass: 21-07 20 10 80
anchor-tiebacks
Omniclass: 21-01 90 30 10
seismic-control
Omniclass: 21-06 10 30 30
rope-climbers
Omniclass: 21-04 10 80 20
site-lighting
Omniclass: 21-07 40 50
vault-equipment
Omniclass: 21-05 10 30 20
bored-piles
Omniclass: 21-01 10 20 15
substructure
Omniclass: 21-01 00 00
fire-extinguishing
Omniclass: 21-04 40 10 50
selective-site-demolition
Omniclass: 21-07 10 20 50
transportation-and-disposal-of-hazardous-materials
Omniclass: 21-06 20 10 10
roadway-pavement
Omniclass: 21-07 20 10 10
utility-relocation
Omniclass: 21-07 10 30 10
site-steam-energy-distribution
Omniclass: 21-07 30 50 20
fireplaces-and-stoves
Omniclass: 21-03 10 90 50
exterior-fixed-windows
Omniclass: 21-02 20 20 20
access-control
Omniclass: 21-04 70 10 10
water-based-fire-suppression
Omniclass: 21-04 40 10 10
roadway-lighting
Omniclass: 21-07 20 10 70
exterior-fountains
Omniclass: 21-07 20 60 10
planting-accessories
Omniclass: 21-07 20 80 50
data-communications-software
Omniclass: 21-04 60 10 50
slabs-on-grade
Omniclass: 21-01 40
underpinning
Omniclass: 21-01 10 20 50
biological-decontamination
Omniclass: 21-07 10 50 25
exterior-louvers-and-vents
Omniclass: 21-02 20 70
balcony-floor-construction
Omniclass: 21-02 10 10 30
institutional-equipment
Omniclass: 21-05 10 40
bird-control-devices
Omniclass: 21-02 20 80 80
name
description
power-distribution
Omniclass: 21-04 50 20 30
facility-fuel-systems
Omniclass: 21-04 30 10
site-irrigation-water-distribution
Omniclass: 21-07 30 10 50
sanitary-sewerage-structures
Omniclass: 21-07 30 20 50
grade-beams
Omniclass: 21-01 10 20 80
interior-special-function-windows
Omniclass: 21-03 10 20 50
roof-construction
Omniclass: 21-02 10 20
structure-demolition
Omniclass: 21-06 30 10
religious-equipment
Omniclass: 21-05 10 40 40
battery-equipment
Omniclass: 21-04 50 10 20
special-construction-and-demolition
Omniclass: 21-06 00 00
equipment-and-furnishings
Omniclass: 21-05 00 00
manufactured-fabricated-rooms
Omniclass: 21-06 10 10 50
site-containment
Omniclass: 21-07 10 50 40
interior-operating-windows
Omniclass: 21-03 10 20 10
exterior-entrance-doors
Omniclass: 21-02 20 50 10
interior-demountable-partitions
Omniclass: 21-03 10 10 40
exterior-wall-opening-supplementary-components
Omniclass: 21-02 20 10 90
horizontal-waterproofing-membrane
Omniclass: 21-02 30 40 30
fire-escapes
Omniclass: 21-02 10 80 60
demolition
Omniclass: 21-06 30
ceiling-painting-and-coating
Omniclass: 21-03 20 50 70
parking-lot-curbs-and-gutters
Omniclass: 21-07 20 20 20
aviation-pavement-curbs-and-gutters
Omniclass: 21-07 20 40 20
domestic-water-distribution
Omniclass: 21-04 20 10
data-communication-program-and-integration-services
Omniclass: 21-04 60 10 60
indoor-soccer-boards
Omniclass: 21-06 10 60 10
building-illumination
Omniclass: 21-07 40 50 50
stone-facing
Omniclass: 21-03 20 10 50
structure-relocation
Omniclass: 21-06 30 50 10
driven-piles
Omniclass: 21-01 10 20 10
site-hydronic-heating-distribution
Omniclass: 21-07 30 50 10
plumbing
Omniclass: 21-04 20
construction-dewatering
Omniclass: 21-01 90 20
cranes
Omniclass: 21-04 10 50 10
lightning-protection
Omniclass: 21-04 50 80 10
substructure-related-activities
Omniclass: 21-01 90
pedestrian-plazas-and-walkways
Omniclass: 21-07 20 30
exterior-fixed-grilles-and-screens
Omniclass: 21-02 20 80 10
people-movers
Omniclass: 21-04 10 30 70
interior-louvers
Omniclass: 21-03 10 90 15
integrated-automation-control-of-equipment
Omniclass: 21-04 80 10 10
suspended-scaffolding
Omniclass: 21-04 10 80 10
subgrade-enclosures
Omniclass: 21-01 20
exterior-window-wall
Omniclass: 21-02 20 20 30
voice-communications-terminal-equipment
Omniclass: 21-04 60 20 20
exterior-special-function-doors
Omniclass: 21-02 20 50 40
branch-wiring-system
Omniclass: 21-04 50 30 10
exterior-doors-and-grilles
Omniclass: 21-02 20 50
facility-hydronic-distribution
Omniclass: 21-04 30 50 10
interior-gates
Omniclass: 21-03 10 40 50
miscellaneous-site-construction
Omniclass: 21-07 90
terrazzo-flooring
Omniclass: 21-03 20 30 60
rock-stabilization
Omniclass: 21-07 10 70 45
electronic-personal-protection
Omniclass: 21-04 70 30 50
entrance-flooring
Omniclass: 21-03 20 30 85
interior-grilles
Omniclass: 21-03 10 40 10
soil-stabilization
Omniclass: 21-07 10 70 40
vehicular-tunnels
Omniclass: 21-07 90 10 10
ceiling-finishes
Omniclass: 21-03 20 50
liquid-and-gas-site-utilities-supplementary-components
Omniclass: 21-07 30 90
pneumatic-tube-systems
Omniclass: 21-04 10 50 70
exterior-wall-specialties
Omniclass: 21-02 20 90
facility-hvac-distribution-systems
Omniclass: 21-04 30 50
stormwater-drainage-equipment
Omniclass: 21-04 20 30 10
erosion-and-sedimentation-controls
Omniclass: 21-07 10 70 35
fuel-oil-detection-and-alarm
Omniclass: 21-04 70 50 40
sinkhole-remediation
Omniclass: 21-07 10 50 45
decontamination-equipment
Omniclass: 21-05 10 90 60
exterior-lighting-supplementary-components
Omniclass: 21-07 40 50 90
horizontal-enclosure-supplementary-components
Omniclass: 21-02 30 40 90
central-cooling
Omniclass: 21-04 30 30 10
vehicle-servicing-equipment
Omniclass: 21-05 10 10 10
exterior-operating-windows
Omniclass: 21-02 20 20 10
voice-communications-switching-and-routing-equipment
Omniclass: 21-04 60 20 10
facility-power-generation-supplementary-components
Omniclass: 21-04 50 10 90
demountable-athletic-surfaces
Omniclass: 21-06 10 60 60
site-specialties
Omniclass: 21-07 20 60 85
radiation-protection
Omniclass: 21-06 10 30 50
storm-drainage-ponds-and-reservoirs
Omniclass: 21-07 30 30 70
heating-systems
Omniclass: 21-04 30 20
site-soil-treatment
Omniclass: 21-07 10 70 90
parking-lot-appurtenances
Omniclass: 21-07 20 20 40
exterior-wall-appurtenances
Omniclass: 21-02 20 80
decentralized-heating-equipment
Omniclass: 21-04 30 20 70
process-support-plumbing-systems
Omniclass: 21-04 20 60
integrated-construction
Omniclass: 21-06 10 10
parapets
Omniclass: 21-02 20 10 50
floor-structural-frame
Omniclass: 21-02 10 10 10
electronic-monitoring-and-control
Omniclass: 21-04 70 70
distributed-systems
Omniclass: 21-04 60 60 50
fabric-structures
Omniclass: 21-06 10 20 10
roof-specialties
Omniclass: 21-02 30 20 30
clearing-and-grubbing
Omniclass: 21-07 10 10 10
embankments
Omniclass: 21-07 10 70 30
tile-wall-finish
Omniclass: 21-03 20 10 10
backfill-and-compaction
Omniclass: 21-01 90 10 10
musical-equipment
Omniclass: 21-05 10 70 20
facility-steam-distribution
Omniclass: 21-04 30 50 30
wall-carpeting
Omniclass: 21-03 20 10 35
movable-multiple-seating
Omniclass: 21-05 20 50 60
interior-gas-lighting
Omniclass: 21-03 10 90 45
hvac-air-distribution
Omniclass: 21-04 30 50 50
water-remediation
Omniclass: 21-07 10 50 80
elevating-platforms
Omniclass: 21-04 10 80 30
general-purpose-electrical-power
Omniclass: 21-04 50 30
liquid-and-gas-site-utilities
Omniclass: 21-07 30
site-equipment
Omniclass: 21-07 20 60 50
site-improvements
Omniclass: 21-07 20
general-service-compressed-air
Omniclass: 21-04 20 50
arena-football-boards
Omniclass: 21-06 10 60 30
site-earthwork
Omniclass: 21-07 10 70
gray-water-systems
Omniclass: 21-04 20 30 60
dumbwaiters
Omniclass: 21-04 10 10 50
suspended-ceiling-construction
Omniclass: 21-03 10 70
standard-foundations
Omniclass: 21-01 10 10
exterior-gas-lighting
Omniclass: 21-07 20 60 45
theater-and-stage-equipment
Omniclass: 21-05 10 70 10
mezzanine-floor-construction
Omniclass: 21-02 10 10 40
miscellaneous-electrical-systems-supplementary-components
Omniclass: 21-04 50 80 90
residential-equipment
Omniclass: 21-05 10 60
retractable-stairs
Omniclass: 21-05 10 60 50
site-fuel-oil-distribution
Omniclass: 21-07 30 60 20
thermal-decontamination
Omniclass: 21-07 10 50 20
commercial-equipment
Omniclass: 21-05 10 30
plumbing-fixtures
Omniclass: 21-04 20 10 60
other-fixed-furnishings
Omniclass: 21-05 20 10 90
acoustical-suspended-ceilings
Omniclass: 21-03 10 70 10
fuel-storage-tanks
Omniclass: 21-04 30 10 50
cribbing-and-walers
Omniclass: 21-01 90 30 40
exterior-door-supplementary-components
Omniclass: 21-02 20 50 90
horizontal-conveying
Omniclass: 21-04 10 30
distributed-communications-and-monitoring
Omniclass: 21-04 60 60
interior-water-features
Omniclass: 21-06 10 50 30
ramps
Omniclass: 21-02 10 10 50
mold-remediation
Omniclass: 21-06 20 10 50
interior-pedestrian-control-equipment
Omniclass: 21-05 10 10 70
detection-and-alarm
Omniclass: 21-04 70 50
exterior-opening-protection-devices
Omniclass: 21-02 20 80 30
flooring-treatment
Omniclass: 21-03 20 30 10
lighting-control
Omniclass: 21-04 50 40 10
access-flooring
Omniclass: 21-03 10 60 10
other-interior-specialties
Omniclass: 21-03 10 90 90
intrusion-detection
Omniclass: 21-04 70 10 50
aviation-pavement-appurtenances
Omniclass: 21-07 20 40 40
infrastructure-demolition
Omniclass: 21-07 10 20 30
exterior-pedestrian-control-equipment
Omniclass: 21-07 20 30 80
audio-video-communication
Omniclass: 21-04 60 30
safety-netting
Omniclass: 21-06 10 60 20
distributed-audio-video-communications-systems
Omniclass: 21-04 60 60 10
unit-kitchens
Omniclass: 21-05 10 30 55
stair-soffits
Omniclass: 21-02 10 80 30
operable-access-systems
Omniclass: 21-04 10 80
geodesic-structures
Omniclass: 21-06 10 20 30
structural-slabs-on-grade
Omniclass: 21-01 40 20
electrical-service
Omniclass: 21-04 50 20 10
specialty-flooring
Omniclass: 21-03 20 30 30
electrical-site-improvements
Omniclass: 21-07 40
window-treatments
Omniclass: 21-05 20 10 20
exterior-steps-and-ramps
Omniclass: 21-07 20 30 30
structure-moving
Omniclass: 21-06 30 50
playfield-areas
Omniclass: 21-07 20 50 50
wood-flooring
Omniclass: 21-03 20 30 45
riprap
Omniclass: 21-07 10 70 65
site-grounding
Omniclass: 21-07 40 10 70
electrical
Omniclass: 21-04 50
off-gassing-mitigation
Omniclass: 21-01 60 20
athletic-and-recreational-court-walls
Omniclass: 21-06 10 60 50
voice-communications-messaging
Omniclass: 21-04 60 20 30
interior-door-supplementary-components
Omniclass: 21-03 10 30 90
special-instrumentation
Omniclass: 21-06 10 80
subgrade-enclosure-wall-construction
Omniclass: 21-01 20 10 10
fuel-gas-detection-and-alarm
Omniclass: 21-04 70 50 30
facility-power-generation
Omniclass: 21-04 50 10
exterior-oversize-doors
Omniclass: 21-02 20 50 30
entertainment-and-recreational-equipment
Omniclass: 21-05 10 70
furnishings
Omniclass: 21-05 20
space-frames
Omniclass: 21-06 10 20 20
site-hydronic-cooling-distribution
Omniclass: 21-07 30 50 40
horticultural-equipment
Omniclass: 21-05 10 90 40
return-air
Omniclass: 21-04 30 60 20
suspended-plaster-and-gypsum-board-ceilings
Omniclass: 21-03 10 70 20
exterior-bulkheads
Omniclass: 21-02 30 80 30
postal,-packaging,-and-shipping-equipment
Omniclass: 21-05 10 30 70
pedestrian-pavement-appurtenances
Omniclass: 21-07 20 30 40
wall-coverings
Omniclass: 21-03 20 10 30
water-and-gas-mitigation
Omniclass: 21-01 60
plants
Omniclass: 21-07 20 80 30
metal-walkways
Omniclass: 21-02 10 80 70
exterior-parking-control-equipment
Omniclass: 21-07 20 20 80
landscaping
Omniclass: 21-07 20 80
wood-stair-finish
Omniclass: 21-03 20 40 45
electronic-safety-and-security
Omniclass: 21-04 70
meteorological-instrumentation
Omniclass: 21-06 10 80 40
site-aviation-fuel-distribution
Omniclass: 21-07 30 60 60
residential-ceiling-fans
Omniclass: 21-05 10 60 70
sanitary-drainage-supplementary-components
Omniclass: 21-04 20 20 90
resilient-flooring
Omniclass: 21-03 20 30 50
ladders
Omniclass: 21-02 10 80 80
dam-demolition
Omniclass: 21-06 30 10 70
data-communications-peripheral-data-equipment
Omniclass: 21-04 60 10 30
communications
Omniclass: 21-04 60
derricks
Omniclass: 21-04 10 50 30
solid-waste-handling-equipment
Omniclass: 21-05 10 90 10
processed-water-systems
Omniclass: 21-04 20 60 50
interior-fountains
Omniclass: 21-06 10 50 20
wall-painting-and-coating
Omniclass: 21-03 20 10 70
building-subdrainage
Omniclass: 21-01 60 10
wireless-communications-distribution
Omniclass: 21-07 50 10 50
floor-construction
Omniclass: 21-02 10 10
security-equipment
Omniclass: 21-05 10 40 60
site-remediation
Omniclass: 21-07 10 50
movable-art
Omniclass: 21-05 20 50 10
structure-raising
Omniclass: 21-06 30 50 30
landscape-lighting
Omniclass: 21-07 20 80 70
shell
Omniclass: 21-02 00 00
pools
Omniclass: 21-06 10 50 10
residential-appliances
Omniclass: 21-05 10 60 10
data-communications-network-equipment
Omniclass: 21-04 60 10 10
healthcare-communications-and-monitoring
Omniclass: 21-04 60 60 30
interior-folding-doors
Omniclass: 21-03 10 30 30
healthcare-equipment
Omniclass: 21-05 10 40 20
educational-and-scientific-equipment
Omniclass: 21-05 10 40 10
baggage-handling-equipment
Omniclass: 21-04 10 50 50
integrated-automation-control-of-hvac-systems
Omniclass: 21-04 80 10 50
exterior-ceilings
Omniclass: 21-02 30 80 10
floor-construction-supplementary-components
Omniclass: 21-02 10 10 90
fire-extinguisher-accessories
Omniclass: 21-04 40 30 70
breathing-air-replenishment-systems
Omniclass: 21-04 40 30 50
interior-railings-and-handrails
Omniclass: 21-03 10 90 10
lighting
Omniclass: 21-04 50 40
exterior-wall-supplementary-components
Omniclass: 21-02 20 10 80
masonry-stair-finish
Omniclass: 21-03 20 40 40
exterior-horizontal-enclosures
Omniclass: 21-02 30
interior-operable-partitions
Omniclass: 21-03 10 10 50
wall-finishes
Omniclass: 21-03 20 10
thermal-heat-storage
Omniclass: 21-04 30 20 30
special-purpose-hvac-systems
Omniclass: 21-04 30 70
movable-furnishings
Omniclass: 21-05 20 50
compressed-air-systems
Omniclass: 21-04 20 60 10
ventilation
Omniclass: 21-04 30 60
tile-flooring
Omniclass: 21-03 20 30 20
asbestos-remediation
Omniclass: 21-06 20 10 20
foundations
Omniclass: 21-01 10
roof-construction-supplementary-components
Omniclass: 21-02 10 20 90
data-communications
Omniclass: 21-04 60 10
fixed-art
Omniclass: 21-05 20 10 10
sitework
Omniclass: 21-07 00 00
excavation-and-fill
Omniclass: 21-07 10 70 20
fixed-multiple-seating
Omniclass: 21-05 20 10 70
rammed-earth-construction
Omniclass: 21-06 10 20 65
detention-equipment
Omniclass: 21-05 10 40 70
heating,-ventilation,-and-air-conditioning-(hvac)
Omniclass: 21-04 30
airfields
Omniclass: 21-07 20 40
hazardous-materials-remediation
Omniclass: 21-06 20 10
waterproofing
Omniclass: 21-01 40 90 30
site-energy-distribution
Omniclass: 21-07 30 50
domestic-water-piping
Omniclass: 21-04 20 10 40
special-structures
Omniclass: 21-06 10 20
cooling-systems
Omniclass: 21-04 30 30
interior-special-function-doors
Omniclass: 21-03 10 30 70
recreational-areas
Omniclass: 21-07 20 50 30
aviation-pavement
Omniclass: 21-07 20 40 10
storm-drainage-utilities
Omniclass: 21-07 30 30
interior-coiling-doors
Omniclass: 21-03 10 30 40
canopy-roofing
Omniclass: 21-02 30 10 70
fire-extinguishers
Omniclass: 21-04 40 30 30
fabricated-exterior-wall-assemblies
Omniclass: 21-02 20 10 40
electric-transmission-and-distribution
Omniclass: 21-07 40 10 20
fixed-furnishings
Omniclass: 21-05 20 10
wall-finish-supplementary-components
Omniclass: 21-03 20 10 90
low-slope-roofing
Omniclass: 21-02 30 10 50
pedestrian-pavement
Omniclass: 21-07 20 30 10
interior-window-supplementary-components
Omniclass: 21-03 10 20 90
other-movable-furnishings
Omniclass: 21-05 20 50 90
culverts
Omniclass: 21-07 30 30 30
cofferdams
Omniclass: 21-01 90 30 20
facility-grounding
Omniclass: 21-04 50 20 70
exterior-wall-veneer
Omniclass: 21-02 20 10 10
roadway-curbs-and-gutters
Omniclass: 21-07 20 10 20
plaza-and-walkway-lighting
Omniclass: 21-07 20 30 70
remediation-soil-stabilization
Omniclass: 21-07 10 50 30
moving-ramps
Omniclass: 21-04 10 10 60
voice-communications
Omniclass: 21-04 60 20
brick
An aesthetic masonry unit.
interior-partition-supplementary-components
Omniclass: 21-03 10 10 90
site-subdrainage
Omniclass: 21-07 30 30 60
roadways
Omniclass: 21-07 20 10
radiation-detection-and-alarm
Omniclass: 21-04 70 50 20
selective-bridge-demolition
Omniclass: 21-06 30 30 50
site-storm-water-drains
Omniclass: 21-07 30 30 40
sanitary-drainage
Omniclass: 21-04 20 20
bridge-demolition
Omniclass: 21-06 30 10 50
refrigeration-detection-and-alarm
Omniclass: 21-04 70 50 50
roofing
Omniclass: 21-02 30 10
building-modules
Omniclass: 21-06 10 10 10
special-wall-surfacing
Omniclass: 21-03 20 10 60
subbase-layer
Omniclass: 21-01 40 90 60
data-communications-hardware
Omniclass: 21-04 60 10 20
wetlands
Omniclass: 21-07 10 70 70
fuel-pumps
Omniclass: 21-04 30 10 30
slope-protection
Omniclass: 21-07 10 70 55
hoists
Omniclass: 21-04 10 50 20
electronic-detention-monitoring-and-control
Omniclass: 21-04 70 70 10
mercantile-and-service-equipment
Omniclass: 21-05 10 30 10
exterior-utility-doors
Omniclass: 21-02 20 50 20
slurry-walls
Omniclass: 21-01 90 30 70
parking-lot-lighting
Omniclass: 21-07 20 20 70
call-management
Omniclass: 21-04 60 20 50
chemical-decontamination
Omniclass: 21-07 10 50 15
stair-railings
Omniclass: 21-02 10 80 50
steep-slope-roofing
Omniclass: 21-02 30 10 10
sanitary-sewerage-lagoons
Omniclass: 21-07 30 20 60
stairs
Omniclass: 21-02 10 80
pedestrian-pavement-curbs-and-gutters
Omniclass: 21-07 20 30 20
storm-drainage-utility-connection
Omniclass: 21-07 30 30 10
integrated-automation-control-of-conveying-equipment
Omniclass: 21-04 80 10 20
electrical-utility-services
Omniclass: 21-07 40 10 10
interior-windows
Omniclass: 21-03 10 20
interior-fixed-windows
Omniclass: 21-03 10 20 20
hvac-air-cleaning
Omniclass: 21-04 30 60 70
ceiling-finish-supplementary-components
Omniclass: 21-03 20 50 90
towers
Omniclass: 21-06 10 20 70
horizontal-opening-supplementary-components
Omniclass: 21-02 30 60 90
gas-systems
Omniclass: 21-04 20 60 30
domestic-water-equipment
Omniclass: 21-04 20 10 20
site-element-relocations
Omniclass: 21-07 10 30
ventilation-supplementary-components
Omniclass: 21-04 30 60 90
evaporative-air-cooling
Omniclass: 21-04 30 30 30
site-domestic-water-distribution
Omniclass: 21-07 30 10 10
foundation-anchors
Omniclass: 21-01 10 20 40
electronic-digital-systems
Omniclass: 21-04 60 30 50
site-bridges
Omniclass: 21-07 20 60 70
interior-parking-control-equipment
Omniclass: 21-05 10 10 30
water-utilities
Omniclass: 21-07 30 10
cmu
Concrete masonry unit, a cast concrete unit often used for structural walls.
site-fire-protection-water-distribution
Omniclass: 21-07 30 10 30
manufactured-canopies
Omniclass: 21-06 10 20 60
communications-supplementary-components
Omniclass: 21-04 60 90
service-walls
Omniclass: 21-03 10 90 30
accessories
Omniclass: 21-05 20 50 40
subgrade-enclosure-wall-interior-skin
Omniclass: 21-01 20 10 20
tile-stair-finish
Omniclass: 21-03 20 40 20
flooring-supplementary-components
Omniclass: 21-03 20 30 90
floor-sockets
Omniclass: 21-06 10 60 40
polychlorinate-biphenyl-remediation
Omniclass: 21-06 20 10 40
chutes
Omniclass: 21-04 10 50 60
powered-scaffolding
Omniclass: 21-04 10 80 40
storm-drainage-pumps
Omniclass: 21-07 30 30 50
integrated-automation
Omniclass: 21-04 80
conveying
Omniclass: 21-04 10
standard-slabs-on-grade
Omniclass: 21-01 40 10
flood-lighting
Omniclass: 21-07 40 50 20
slab-on-grade-supplementary-components
Omniclass: 21-01 40 90
interior-fabrications
Omniclass: 21-03 20 20
interior-finishes
Omniclass: 21-03 20
interior-specialties
Omniclass: 21-03 10 90
lighting-fixtures
Omniclass: 21-04 50 40 50
earth-stripping-and-stockpiling
Omniclass: 21-07 10 10 50
exterior-vents
Omniclass: 21-02 20 70 50
chemical-waste-systems
Omniclass: 21-04 20 60 40
stair-construction
Omniclass: 21-02 10 80 10
acoustical-ceiling-treatment
Omniclass: 21-03 20 50 80
services
Omniclass: 21-04 00 00
column-foundations
Omniclass: 21-01 10 10 30
wall-paneling
Omniclass: 21-03 20 10 20