Section 210523 Section 210523. Section 21-0523 Section 21 05 23. Section 21.05.23. Section 21 05 23 Division 21 General-Duty Valves for Water-Based Fire-Suppression Piping Ball valves. Butterfly valves. Check valves. Trim and drain valves. Gate valves. Outside screw and yoke valves.

Section 210529 Section 210529. Section 21-0529 Section 21 05 29. Section 21.05.29. Section 21 05 29 Division 21 Hangers and Supports for Fire-Suppression Piping and Equipment Pipe hangers and supports. Inserts. Slotted channels. Equipment bases.

Section 210548 Section 210548. Section 21-0548 Section 21 05 48. Section 21.05.48. Section 21 05 48 Division 21 Vibration and Seismic Controls for Fire-Suppression Piping and Equipment Inertia bases. Vibration isolators.

Section 210553 Section 210553. Section 21-0553 Section 21 05 53. Section 21.05.53. Section 21 05 53 Division 21 Identification for Fire-Suppression Piping and Equipment Labels. Tags. Stencils. Lockout devices

Section 210553 Section 210553. Section 21-0553 Section 21 05 53. Section 21.05.53. Section 21 05 53 Division 21 Identification for Fire-Suppression Piping and Equipment Labels. Tags. Stencils. Lockout devices

Section 211200 Section 211200. Section 21-1200 Section 21 12 00. Section 21.12.00. Section 21 12 00 Division 21 Fire-Suppression Standpipes Standpipes. Hoses and nozzles. Hose reels. Hose racks. Hose valves. Controls. Accessories.

Section 211313 Section 211313. Section 21-1313 Section 21 13 13. Section 21.13.13. Section 21 13 13 Division 21 Wet-Pipe Sprinkler Systems Sprinklers. Pipe and fittings. Valves. Piping specialties.

Section 211316 Section 211316. Section 21-1316 Section 21 13 16. Section 21.13.16. Section 21 13 16 Division 21 Dry-Pipe Sprinkler Systems Sprinklers. Pipe and fittings. Valves. Dry pipe control valves. Nitrogen generator with integral compressor. Supervised nitrogen cylinder system. Piping specialties.

Section 213000 Section 213000. Section 21-3000 Section 21 30 00. Section 21.30.00. Section 21 30 00 Division 21 Fire Pumps Fire pump system. Horizontal split-case fire pump. End suction fire pump. Vertical in-line fire pump. Vertical turbine fire pump. Horizontal turbine pressure booster pumps. Multi-stage centrifugal pressure booster pumps. Pressure booster pumps. Electric motor drive. Diesel engine drive. Fire pump controller. Pressure booster pump controller.

Section 220513 Section 220513. Section 22-0513 Section 22 05 13. Section 22.05.13. Section 22 05 13 Division 22 Common Motor Requirements For Plumbing Equipment Plumbing equipment motors.

Section 220516 Section 220516. Section 22-0516 Section 22 05 16. Section 22.05.16. Section 22 05 16 Division 22 Expansion Fittings and Loops for Plumbing Piping Flexible pipe connectors. Expansion joints.

Section 220517 Section 220517. Section 22-0517 Section 22 05 17. Section 22.05.17. Section 22 05 17 Division 22 Sleeves and Sleeve Seals for Plumbing Piping Sleeves. Mechanical sleeve seals. Flashing.

Section 220519 Section 220519. Section 22-0519 Section 22 05 19. Section 22.05.19. Section 22 05 19 Division 22 Meters and Gauges for Plumbing Piping Thermometers. Pressure gages. Test plugs. Sight flow indicators. Flowmeters. Thermal energy meters.

Section 220523 Section 220523. Section 22-0523 Section 22 05 23. Section 22.05.23. Section 22 05 23 Division 22 General-Duty Valves for Plumbing Piping Gate valves. Ball valves. Plug valves. Butterfly valves. Check valves.

Section 220529 Section 220529. Section 22-0529 Section 22 05 29. Section 22.05.29. Section 22 05 29 Division 22 Hangers and Supports for Plumbing Piping and Equipment Pipe hangers and supports. Inserts. Slotted channels. Equipment bases.

Section 220548 Section 220548. Section 22-0548 Section 22 05 48. Section 22.05.48. Section 22 05 48 Division 22 Vibration and Seismic Controls for Plumbing Piping and Equipment Inertia bases. Vibration isolators.

Section 220553 Section 220553. Section 22-0553 Section 22 05 53. Section 22.05.53. Section 22 05 53 Division 22 Identification for Plumbing Piping and Equipment Labeling. Tags. Stencils. Pipe markers. Labels. Lockout devices.

Section 220700 Section 220700. Section 22-0700 Section 22 07 00. Section 22.07.00. Section 22 07 00 Division 22 Plumbing Insulation Plumbing piping insulation, jackets and accessories. Plumbing equipment insulation, jackets and accessories.

Section 221100 Section 221100. Section 22-1100 Section 22 11 00. Section 22.11.00. Section 22 11 00 Division 22 Facility Water Distribution Domestic water piping, buried beyond 5 feet of building. Domestic water piping, buried within 5 feet of building. Domestic water piping, above grade. Unions and flanges. Pressure gages. Pressure gage taps. Stem type thermometers. Relief valves. Strainers. Hose bibs. Hydrants. Recessed valve box. Backflow preventers. Water hammer arrestors. Thermostatic mixing valves. Pressure balanced mixing valves. Diaphragm-type compression tanks. In-line circulator pumps. Underground pipe markers. Disinfectant.

Section 221300 Section 221300. Section 22-1300 Section 22 13 00. Section 22.13.00. Section 22 13 00 Division 22 Facility Sanitary Sewerage Sanitary sewer piping buried beyond 5 feet of building. Sanitary sewer piping buried within 5 feet of building. Sanitary sewer piping above grade. Unions and flanges. Valves. Pipe hangers and supports. Floor drains. Floor sinks. Planter drains. Cleanouts. Backwater valves. Sumps. Grease interceptors. Oil interceptors. Sediment interceptors. Manholes. Sewage ejectors. Submersible sewage ejectors. Underground pipe markers. Bedding and cover materials.

Section 221400 Section 221400. Section 22-1400 Section 22 14 00. Section 22.14.00. Section 22 14 00 Division 22 Facility Storm Drainage Storm water piping buried beyond 5 feet of building. Storm water piping buried within 5 feet of building. Storm water piping above grade. Unions and flanges. Check valves. Pipe hangers and supports. Roof drains. Parapet drains. Canopy and cornice drains. Special purpose downspout covers. Downspout nozzles. Area drains. Planter drains. Cleanouts. Sumps. Sediment interceptors. Catch basins. Manholes. Sump pumps. Submersible sump pumps. Underground pipe markers. Bedding and cover materials.

Section 223000 Section 223000. Section 22-3000 Section 22 30 00. Section 22.30.00. Section 22 30 00 Division 22 Plumbing Equipment Electric water heaters. Fuel-fired water heaters. Storage tanks. Preheaters.

Section 223300 Section 223300. Section 22-3300 Section 22 33 00. Section 22.33.00. Section 22 33 00 Division 22 Electric Domestic Water Heaters Tank type residential electric water heaters. Tankless residential electric water heaters. Tank type commercial electric water heaters.

Section 223400 Section 223400. Section 22-3400 Section 22 34 00. Section 22.34.00. Section 22 34 00 Division 22 Fuel-Fired Domestic Water Heaters Tank type residential gas-fired water heaters. Tankless residential gas-fired water heaters. Tank type commercial gas-fired water heaters. Domestic hot water storage tanks.

Section 224000 Section 224000. Section 22-4000 Section 22 40 00. Section 22.40.00. Section 22 40 00 Division 22 Plumbing Fixtures Water closets. Bidets. Urinals. Lavatories. Sinks. Service sinks. Electric water coolers. Drinking fountains. Bathtubs. Showers and shower pans. Emergency fixtures, including showers and eye and face wash. Healthcare fixtures.

Section 230513 Section 230513. Section 23-0513 Section 23 05 13. Section 23.05.13. Section 23 05 13 Division 23 Common Motor Requirements for HVAC Equipment HVAC equipment motors.

Section 230516 Section 230516. Section 23-0516 Section 23 05 16. Section 23.05.16. Section 23 05 16 Division 23 Expansion Fittings and Loops for HVAC Piping Flexible pipe connectors. Expansion joints.

Section 230517 Section 230517. Section 23-0517 Section 23 05 17. Section 23.05.17. Section 23 05 17 Division 23 Sleeves and Sleeve Seals for HVAC Piping Sleeves. Mechanical sleeve seals. Flashing.

Section 230519 Section 230519. Section 23-0519 Section 23 05 19. Section 23.05.19. Section 23 05 19 Division 23 Meters and Gauges for HVAC Piping Thermometers. Pressure gages. Test plugs. Sight flow indicators. Flowmeters. Thermal energy meters.

Section 230523 Section 230523. Section 23-0523 Section 23 05 23. Section 23.05.23. Section 23 05 23 Division 23 General-Duty Valves for HVAC Piping Gate valves. Globe valves. Ball valves. Plug valves. Butterfly valves. Check valves.

Section 230529 Section 230529. Section 23-0529 Section 23 05 29. Section 23.05.29. Section 23 05 29 Division 23 Hangers and Supports for HVAC Piping and Equipment Pipe hangers and supports. Inserts. Slotted channels. Sleeves. Mechanical sleeve seals. Equipment bases.

Section 230548 Section 230548. Section 23-0548 Section 23 05 48. Section 23.05.48. Section 23 05 48 Division 23 Vibration and Seismic Controls for HVAC Inertia bases. Vibration isolators. Attenuators. Housings. Ductwork lagging. Acoustic louvers.

Section 230553 Section 230553. Section 23-0553 Section 23 05 53. Section 23.05.53. Section 23 05 53 Division 23 Identification for HVAC Piping and Equipment

Section 230593 Section 230593. Section 23-0593 Section 23 05 93. Section 23.05.93. Section 23 05 93 Division 23 Testing, Adjusting, and Balancing for HVAC Testing adjusting, and balancing of air systems. Testing adjusting, and balancing of hydronic systems. Measurement of final operating condition of HVAC systems. Sound measurement of equipment operating conditions. Vibration measurement of equipment operating conditions.

Section 230700 Section 230700. Section 23-0700 Section 23 07 00. Section 23.07.00. Section 23 07 00 Division 23 HVAC Insulation HVAC piping insulation, jackets and accessories. HVAC equipment insulation, jackets and accessories. HVAC ductwork insulation, jackets and accessories.

Section 231123 Section 231123. Section 23-1123 Section 23 11 23. Section 23.11.23. Section 23 11 23 Division 23 Facility Natural-Gas Piping Natural gas piping buried within 5�feet of building. Natural gas piping above grade. Unions and flanges. Natural gas piping specialties. Bedding and cover materials.

Section 232113 Section 232113. Section 23-2113 Section 23 21 13. Section 23.21.13. Section 23 21 13 Division 23 Hydronic Piping Heating water[and glycol] piping, buried. Heating water[and glycol] piping, above ground. Chilled water piping, buried. Chilled water piping, above ground. Condenser water piping, buried. Condenser water piping, above ground. Radiant heating piping. Equipment drains and overflows. Flue and combustion air piping. Unions and flanges. Pipe hangers and supports. Bedding and cover materials.

Section 232116 Section 232116. Section 23-2116 Section 23 21 16. Section 23.21.16. Section 23 21 16 Division 23 Hydronic Piping Specialties Positive displacement liquid flow meters. Differential pressure liquid flow meters. Pressure gages. Pressure gage taps. Thermometers. Termometer supports. Test plugs. Flexible connectors. Expansion tanks. Diaphragm type expansion tanks. Air vents. Air separators. Strainers. Pump suction fittings. Combination pump discharge valves. Relief valves. Glycol charging. Glycol solution.

Section 232123 Section 232123. Section 23-2123 Section 23 21 23. Section 23.21.23. Section 23 21 23 Division 23 Hydronic Pumps System lubricated circulators. In-line circulators. Vertical in-line pumps. Close coupled pumps. Base mounted pumps. Side stream filtration system.

Section 232300 Section 232300. Section 23-2300 Section 23 23 00. Section 23.23.00. Section 23 23 00 Division 23 Refrigerant Piping Refrigerant piping. Unions, flanges, and couplings. Refrigerant piping specialties. Valves. Refrigerant receivers. Underground pipe markers. Bedding and cover materials.

Section 233100 Section 233100. Section 23-3100 Section 23 31 00. Section 23.31.00. Section 23 31 00 Division 23 HVAC Ducts and Casings Metal ducts. Nonmetal rigid ducts. Flexible ducts. Casings. Kitchen hood exhaust ductwork.

Section 233300 Section 233300. Section 23-3300 Section 23 33 00. Section 23.33.00. Section 23 33 00 Division 23 Air Duct Accessories Backdraft dampers. Combination fire and smoke dampers. Duct access doors. Dynamic fire dampers. Static fire dampers. Ceiling fire dampers. Smoke dampers. Volume control dampers. Flexible duct connections. Duct test holes. Dial thermometers. Static pressure gauges.

Section 233400 Section 233400. Section 23-3400 Section 23 34 00. Section 23.34.00. Section 23 34 00 Division 23 HVAC Fans Centrifugal fans. Axial fans. Propeller fans. Downblast centrifugal roof fans. Upblast centrifugal roof fans. Centrifugal wall fans. Centrifugal ceiling fans. Inline ceiling fans. Duct blowers or cabinet fans. Centrifugal square inline fans. Upblast propeller roof fans. Centrifugal filtered supply fans. Combination kitchen hood supply and exhaust fans. Gravity roof ventilators. Energy recovery ventilator.

Section 233600 Section 233600. Section 23-3600 Section 23 36 00. Section 23.36.00. Section 23 36 00 Division 23 Air Terminal Units Constant volume terminal units. Variable volume terminal units. Dual duct terminal units. Fan powered terminal units.

Section 233700 Section 233700. Section 23-3700 Section 23 37 00. Section 23.37.00. Section 23 37 00 Division 23 Air Outlets and Inlets Diffusers. Ceiling registers and grilles. Wall registers and grilles. Floor registers and grilles. Roof hoods. Goosenecks.

Section 234000 Section 234000. Section 23-4000 Section 23 40 00. Section 23.40.00. Section 23 40 00 Division 23 HVAC Air Cleaning Devices Disposable, extended area panel filters. Disposable panel filters. Extended surface high efficiency filters. HEPA filters. Filter frames and housings. Filter gauges.

Section 235700 Section 235700. Section 23-5700 Section 23 57 00. Section 23.57.00. Section 23 57 00 Division 23 Heat Exchangers for HVAC Shell and tube type heat exchangers. Plate and frame type heat exchangers.

Section 236300 Section 236300. Section 23-6300 Section 23 63 00. Section 23.63.00. Section 23 63 00 Division 23 Refrigerant Condensers Refrigerant condensers. Housing. Condenser coils. Fans.

Section 236400 Section 236400. Section 23-6400 Section 23 64 00. Section 23.64.00. Section 23 64 00 Division 23 Packaged Water Chillers

Section 236500 Section 236500. Section 23-6500 Section 23 65 00. Section 23.65.00. Section 23 65 00 Division 23 Cooling Towers Steel cooling towers. FRP cooling towers.

Section 237413 Section 237413. Section 23-7413 Section 23 74 13. Section 23.74.13. Section 23 74 13 Division 23 Packaged, Outdoor, Central-Station Air-Handling Units Air handling units. Casing. Fans. Motors. Bearings and drives. Coils. Humidifier. Filters. Economizer. Dampers. Outside air measuring and modulation device. Controls.

Section 237416 Section 237416. Section 23-7416 Section 23 74 16. Section 23.74.16. Section 23 74 16 Division 23 Packaged Rooftop Air-Conditioning Units Packaged rooftop air-conditioning units. Roof curbs.

Section 237433 Section 237433. Section 23-7433 Section 23 74 33. Section 23.74.33. Section 23 74 33 Division 23 Dedicated Outdoor-Air Units Dedicated outdoor-air units. Roof curbs.

Section 238113 Section 238113. Section 23-8113 Section 23 81 13. Section 23.81.13. Section 23 81 13 Division 23 Packaged Terminal Air-Conditioners Packaged terminal air conditioning units. Packaged terminal heat pump units.

Section 238119 Section 238119. Section 23-8119 Section 23 81 19. Section 23.81.19. Section 23 81 19 Division 23 Self-Contained Air-Conditioners Self-contained air-conditioners.

Section 238123 Section 238123. Section 23-8123 Section 23 81 23. Section 23.81.23. Section 23 81 23 Division 23 Computer-Room Air-Conditioners Floor mounted air conditioning units. Ceiling mounted air conditioning units.

Section 238126 Section 238126. Section 23-8126 Section 23 81 26. Section 23.81.26. Section 23 81 26 Division 23 Split Systems Air-Conditioners Single-zone outdoor units. Indoor units. Refrigerant piping. Condensate drain piping. Controls and control cables.

Section 238129 Section 238129. Section 23-8129 Section 23 81 29. Section 23.81.29. Section 23 81 29 Division 23 Variable Refrigerant Flow HVAC Systems VRF outdoor units. Heat recovery branch circuit controllers. Indoor, exposed, wall mount units. Indoor, suspended, ceiling mount units. Indoor, concealed, ceiling mount units for ducting. VRF refrigerant piping. VRF condensate drain piping. VRF controls. VRF control cable.

Section 255000 Section 255000. Section 25-5000 Section 25 50 00. Section 25.50.00. Section 25 50 00 Division 25 Integrated Automation Facility Controls Building automation system. Building level system controllers. Advanced application controllers. Application specific controllers. Controller enclosures. Temperature sensors and switches. Pressure sensors and switches. CO2 and VOC sensors. Equipment status switches. Airflow measuring stations. Control dampers. Control damper and valve actuators. Control valves. Digital electric meters.

Section 260513 Section 260513. Section 26-0513 Section 26 05 13. Section 26.05.13. Section 26 05 13 Division 26 Medium-Voltage Cables Medium-voltage cable. Cable terminations. Fireproofing tape.

Section 260519 Section 260519. Section 26-0519 Section 26 05 19. Section 26.05.19. Section 26 05 19 Division 26 Low-Voltage Electrical Power Conductors and Cables Building wire. Nonmetallic-sheathed cable. Direct burial cable. Service entrance cable. Armored cable. Metal clad cable. Tray cable. Wiring connectors and terminations.

Section 260526 Section 260526. Section 26-0526 Section 26 05 26. Section 26.05.26. Section 26 05 26 Division 26 Grounding and Bonding for Electrical Systems Electrodes. Wire. Grounding well components. Connections.

Section 260529 Section 260529. Section 26-0529 Section 26 05 29. Section 26.05.29. Section 26 05 29 Division 26 Hangers and Supports for Electrical Systems Conduit supports. Slotted channels. Sleeves. Mechanical sleeve seals.

Section 260533 Section 260533. Section 26-0533 Section 26 05 33. Section 26.05.33. Section 26 05 33 Division 26 Raceway and Boxes for Electrical Systems Metal conduit. Electrical metallic tubing. Nonmetallic conduit. Nonmetallic tubing. Surface raceway. Wireway. Outlet boxes. Pull and junction boxes.

Section 260536 Section 260536. Section 26-0536 Section 26 05 36. Section 26.05.36. Section 26 05 36 Division 26 Cable Trays for Electrical Systems Metal cable trays. Fiberglass cable trays. Warning signs.

Section 260544 Section 260544. Section 26-0544 Section 26 05 44. Section 26.05.44. Section 26 05 44 Division 26 Sleeves and Sleeve Seals for Electrical Raceways and Cabling Sleeves. Mechanical sleeve seals.

Section 260548 Section 260548. Section 26-0548 Section 26 05 48. Section 26.05.48. Section 26 05 48 Division 26 Vibration and Seismic Controls for Electrical Equipment Isolation pads. Restraints. Post-installed anchors. Inserts.

Section 260553 Section 260553. Section 26-0553 Section 26 05 53. Section 26.05.53. Section 26 05 53 Division 26 Identification for Electrical Systems Nameplates. Labels. Wire markers. Conduit and raceway markers. Stencils. Underground warning tape. Lockout devices.

Section 260573 Section 260573. Section 26-0573 Section 26 05 73. Section 26.05.73. Section 26 05 73 Division 26 Power System Studies Power system studies.

Section 260923 Section 260923. Section 26-0923 Section 26 09 23. Section 26.09.23. Section 26 09 23 Division 26 Lighting Control Devices Remote control lighting relays. Lighting contactors. Occupancy sensors. Photocells.

Section 260943 Section 260943. Section 26-0943 Section 26 09 43. Section 26.09.43. Section 26 09 43 Division 26 Network Lighting Controls Networked lighting control system. Relay panels. Network wiring. Programmable network wired switches. Central scheduling interface. Software. BAS integration.

Section 261200 Section 261200. Section 26-1200 Section 26 12 00. Section 26.12.00. Section 26 12 00 Division 26 Medium-Voltage Transformers Liquid-filled transformers. Dry type transformers.

Section 261300 Section 261300. Section 26-1300 Section 26 13 00. Section 26.13.00. Section 26 13 00 Division 26 Medium-Voltage Switchgear

Section 262200 Section 262200. Section 26-2200 Section 26 22 00. Section 26.22.00. Section 26 22 00 Division 26 Low-Voltage Transformers Two-winding transformers. Shielded transformers. Autotransformers. Buck-and-boost transformers.

Section 262300 Section 262300. Section 26-2300 Section 26 23 00. Section 26.23.00. Section 26 23 00 Division 26 Low-Voltage Switchgear Switchboards. Circuit breakers. Power monitoring equipment. Surge protective device. Mimic bus.

Section 262413 Section 262413. Section 26-2413 Section 26 24 13. Section 26.24.13. Section 26 24 13 Division 26 Switchboards Switchboards. Circuit breakers. Ground fault devices. Transient voltage suppression devices. Ammeters and voltmeters. Meter transfer switches. Power monitoring.

Section 262416 Section 262416. Section 26-2416 Section 26 24 16. Section 26.24.16. Section 26 24 16 Division 26 Panelboards Distribution and branch circuit panelboards. Electronic grade branch circuit panelboards. Load centers.

Section 262726 Section 262726. Section 26-2726 Section 26 27 26. Section 26.27.26. Section 26 27 26 Division 26 Wiring Devices Receptacles. Switches. Dimming controls. Wall plates.

Section 262800 Section 262800. Section 26-2800 Section 26 28 00. Section 26.28.00. Section 26 28 00 Division 26 Low-Voltage Circuit Protective Devices Fuses. Enclosed switches and circuit breakers. Enclosed fused power circuit devices.

Section 262913 Section 262913. Section 26-2913 Section 26 29 13. Section 26.29.13. Section 26 29 13 Division 26 Enclosed Controllers Motor controllers. Fractional horsepower manual motor controllers. Magnetic motor controllers. Variable frequency motor controllers.

Section 262923 Section 262923. Section 26-2923 Section 26 29 23. Section 26.29.23. Section 26 29 23 Division 26 Variable-Frequency Motor Controllers Low voltage pulse width modulated variable-frequency motor controllers (VFD).

Section 263213 Section 263213. Section 26-3213 Section 26 32 13. Section 26.32.13. Section 26 32 13 Division 26 Engine Generators Engine generators.

Section 263300 Section 263300. Section 26-3300 Section 26 33 00. Section 26.33.00. Section 26 33 00 Division 26 Battery Equipment Batteries. static power converters. Battery chargers. Battery monitoring. Static UPS

Section 263600 Section 263600. Section 26-3600 Section 26 36 00. Section 26.36.00. Section 26 36 00 Division 26 Transfer Switches Automatic transfer switches.

Section 265100 Section 265100. Section 26-5100 Section 26 51 00. Section 26.51.00. Section 26 51 00 Division 26 Interior Lighting Interior luminaires. LED lamps. Lighting controls.

Section 265213 Section 265213. Section 26-5213 Section 26 52 13. Section 26.52.13. Section 26 52 13 Division 26 Emergency and Exit Lighting Emergency lighting units. Exit signs. LED lamp emergency power supply.

Section 265500 Section 265500. Section 26-5500 Section 26 55 00. Section 26.55.00. Section 26 55 00 Division 26 Special Purpose Lighting

Section 265600 Section 265600. Section 26-5600 Section 26 56 00. Section 26.56.00. Section 26 56 00 Division 26 Exterior Lighting

Section 270500 Section 270500. Section 27-0500 Section 27 05 00. Section 27.05.00. Section 27 05 00 Division 27 Common Work Results for Communications Communication system general requirements. Service pathway cabling.

Section 271100 Section 271100. Section 27-1100 Section 27 11 00. Section 27.11.00. Section 27 11 00 Division 27 Communication Rooms Equipment Room Fittings Entrance protection. Cabinets and racks. Termination blocks and patch panels. Fiber cassettes. Electrical supply and protection.

Section 271300 Section 271300. Section 27-1300 Section 27 13 00. Section 27.13.00. Section 27 13 00 Division 27 Communications Backbone Cabling Copper backbone cabling. Optical fiber backbone cabling. Coaxial horizontal cabling. Cross connects.

Section 271500 Section 271500. Section 27-1500 Section 27 15 00. Section 27.15.00. Section 27 15 00 Division 27 Communications Horizontal Cabling Copper horizontal cable. Optical fiber horizontal cable. Coaxial horizontal cable. Faceplates and connectors.

Section 274000 Section 274000. Section 27-4000 Section 27 40 00. Section 27.40.00. Section 27 40 00 Division 27 Audio-Video Communications Audio-video communication systems. Projectors. Projection screens. Display screens. Amplifiers. Speakers. Microphones. Cables. Controls.

Section 275000 Section 275000. Section 27-5000 Section 27 50 00. Section 27.50.00. Section 27 50 00 Division 27 Distributed Communications and Monitoring System Control stations. Amplifiers. Loudspeakers. Antennae. Microphones. Signal receivers. Clocks. Public address system.

Section 282000 Section 282000. Section 28-2000 Section 28 20 00. Section 28.20.00. Section 28 20 00 Division 28 Video Surveillance Mounts. Lenses. Video cameras. Monitors. Recording equipment. Control equipment. Enclosures.

Section 284600 Section 284600. Section 28-4600 Section 28 46 00. Section 28.46.00. Section 28 46 00 Division 28 Fire Detection and Alarm Fire alarm system. Fire alarm control panels. Manual fire alarm stations. Detectors. Remote annunciators. Notifiers. Door releases. Wire and cable. Power supply.

Section 311000 Section 311000. Section 31-1000 Section 31 10 00. Section 31.10.00. Section 31 10 00 Division 31 Site Clearing Clearing site of paving and curbs, fencing, debris, grass, trees, and other plant life in preparation for site or building excavation work.

Section 312000 Section 312000. Section 31-2000 Section 31 20 00. Section 31.20.00. Section 31 20 00 Division 31 Earth Moving Soil densification, excavating, rock removal, backfilling, fill, and grading.

Section 312300 Section 312300. Section 31-2300 Section 31 23 00. Section 31.23.00. Section 31 23 00 Division 31 Excavation and Fill Excavation and fill associated with foundations. Excavation and fill associated with slabs. Excavation and fill associated with utility trenches at structures.

Section 313116 Section 313116. Section 31-3116 Section 31 31 16. Section 31.31.16. Section 31 31 16 Division 31 Termite Control Soil treatment. Wood treatment.