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Frequently touched 2020 NEC lookup cards for GIES field work. Cards use section references, not rewritten code language.
These cards list the actual NEC section references to open in your hard copy. The app does not rewrite Code language. Each card has a field where you can manually type exact language from your own hard copy if you want it stored locally.
35 field cardsExact text owner-entryNo full book PDF
Field trigger: Panels, switchboards, switchgear, disconnects, MCCs, and service equipment where working space or dedicated equipment space may be questioned.
2020 NEC lookup refs: 110.26(A)(1), 110.26(A)(2), 110.26(A)(3), 110.26(D), 110.26(E), 110.26(F)
Hard-copy lookup: Article 110, Section 110.26, Read all subdivisions and tables tied to working space
Field trigger: Terminations, listed equipment, manufacturer instructions, breaker/lug torque, field labels, and inspection corrections.
2020 NEC lookup refs: 110.3(B), 110.12, 110.14, 110.14(D), 110.21(B), 110.22
Hard-copy lookup: Article 110, Sections 110.3(B), 110.12, 110.14, 110.21, 110.22
Field trigger: Penetrations through fire-rated assemblies, draft/fire stopping around electrical penetrations, and inspection coordination.
2020 NEC lookup refs: 300.21
Hard-copy lookup: Article 300, Section 300.21, Coordinate with building code and rated-assembly system
Field trigger: Bathrooms, garages, outdoors, crawl spaces, basements, kitchens, sinks, laundry areas, boathouses, tubs/showers, and other dwelling GFCI checks.
2020 NEC lookup refs: 210.8(A), 210.8(D), 406.4(D)
Hard-copy lookup: Article 210, Section 210.8(A), Check all subdivisions, distance language, exceptions, and device replacement rules
Field trigger: Commercial, institutional, shop, office, public, garage, rooftop, indoor damp/wet, sink, and equipment-service receptacle checks.
2020 NEC lookup refs: 210.8(B), 210.8(E), 210.63, 406.4(D)
Hard-copy lookup: Article 210, Section 210.8(B), Section 210.63, Read all listed location items and exceptions
Field trigger: Dwelling unit habitable areas, extensions, modifications, replacements, and panel/device AFCI questions.
2020 NEC lookup refs: 210.12(A), 210.12(B), 210.12(C), 406.4(D)
Hard-copy lookup: Article 210, Section 210.12, Check exact outlet/area list, branch-circuit modification language, and permitted methods
Field trigger: Wall spacing, countertop, island/peninsula, bathroom, outdoor, laundry, garage, hallway, foyer, and similar dwelling outlet layout checks.
2020 NEC lookup refs: 210.52(A), 210.52(B), 210.52(C), 210.52(D), 210.52(E), 210.52(F), 210.52(G), 210.52(H), 210.52(I)
Hard-copy lookup: Article 210, Section 210.52, Read each dwelling-area subdivision and exceptions
Field trigger: Replacing ungrounded, GFCI/AFCI, tamper-resistant, weather-resistant, and wet-location receptacles.
2020 NEC lookup refs: 406.4(D), 406.9(A), 406.9(B), 406.12
Hard-copy lookup: Article 406, Sections 406.4, 406.9, 406.12
Field trigger: Small-appliance, laundry, bathroom, garage, and dedicated dwelling branch circuit questions.
2020 NEC lookup refs: 210.11(C)(1), 210.11(C)(2), 210.11(C)(3), 210.11(C)(4), 210.52(B), 210.52(D), 210.52(F)
Hard-copy lookup: Article 210, Sections 210.11(C) and 210.52
Field trigger: 20A/30A circuits, conductor ampacity, continuous load, device ratings, and breaker sizing checks.
2020 NEC lookup refs: 210.19(A), 210.20(A), 210.21(B), 240.4(D), 310.16
Hard-copy lookup: Articles 210, 240, 310, Read exact conductor, OCPD, and continuous-load language
Field trigger: Bundled cables, attic heat, conduit fill derating, rooftop/ambient conditions, temperature rating, and NM cable ampacity issues.
2020 NEC lookup refs: 310.15, 310.16, 334.80, 110.14(C)
Hard-copy lookup: Articles 310 and 334, Tables and notes must be checked in the hard copy
Field trigger: Old work boxes, multi-gang boxes, conductor counts, internal clamps, devices, equipment grounding conductors, and luminaire box support.
2020 NEC lookup refs: 314.16(A), 314.16(B), 314.16(C), 314.27(A)
Hard-copy lookup: Article 314, Section 314.16, Check box volume marking and conductor allowances
Field trigger: Straight pulls, angle pulls, raceway entries, large conductors, and conduit body limitations.
2020 NEC lookup refs: 314.28(A)(1), 314.28(A)(2), 314.28(C), 314.16(C)
Hard-copy lookup: Article 314, Section 314.28, Check straight/angle/U-pull rules and conductor sizes
Field trigger: Water pipe, ground rods, concrete-encased electrodes, building steel, available electrodes, and electrode-system questions.
2020 NEC lookup refs: 250.50, 250.52(A), 250.53(A), 250.53(D), 250.53(G)
Hard-copy lookup: Article 250, Part III, Sections 250.50 through 250.53
Field trigger: Grounding electrode conductor size, protection, clamps, irreversible splices, and routing questions.
2020 NEC lookup refs: 250.64(B), 250.64(C), 250.64(D), 250.66, 250.68(C)
Hard-copy lookup: Article 250, Sections 250.64, 250.66, 250.68
Field trigger: Equipment grounding conductor types, sizing from OCPD, raceway as EGC, and upsizing conductors.
2020 NEC lookup refs: 250.118, 250.122, 250.122(B)
Hard-copy lookup: Article 250, Part VI, Sections 250.118 and 250.122
Field trigger: Natural gas piping bonding, CSST coordination, mechanical/plumbing inspection questions, and where NEC stops and product/AHJ rules begin.
2020 NEC lookup refs: 250.104(B), 250.104(C), 110.3(B)
Hard-copy lookup: Article 250, Section 250.104, Also check gas code, CSST instructions, and AHJ direction
Field trigger: Main bonding jumper, service disconnect, neutral-to-ground relationship, supply-side bonding, and service equipment checks.
2020 NEC lookup refs: 250.24(A), 250.24(B), 250.24(C), 250.24(D), 250.28, 230.70, 230.71
Hard-copy lookup: Articles 230 and 250, Service equipment and grounding/bonding parts
Field trigger: Service entrance, emergency disconnects, number of service disconnects, service disconnect location, and dwelling SPD checks.
2020 NEC lookup refs: 230.40, 230.70, 230.71, 230.85, 230.67
Hard-copy lookup: Article 230, Check service conductors, disconnects, emergency disconnect, and surge protection sections
Field trigger: Detached garage/building feeders, feeder disconnects, equipment grounding conductor, grounding electrodes, and neutral isolation.
2020 NEC lookup refs: 215.2, 225.30, 225.31, 225.32, 250.32, 250.122
Hard-copy lookup: Articles 215, 225, 250, Read exact feeder and detached-building rules
Field trigger: Panel directories, unused openings, panelboard protection, neutral termination, and cabinet/panel corrections.
2020 NEC lookup refs: 408.4, 408.7, 408.36, 408.41, 312.5
Hard-copy lookup: Articles 312 and 408, Read panelboard and cabinet sections
Field trigger: EMT support, bends, couplings/connectors, corrosion, and raceway installation questions.
2020 NEC lookup refs: 358.10, 358.12, 358.24, 358.26, 358.28, 358.30, 358.42
Hard-copy lookup: Article 358, Check uses permitted, uses not permitted, bends, support, couplings
Field trigger: PVC exposed/underground work, physical damage, expansion, support, burial depth, and wet-location conductors.
2020 NEC lookup refs: 300.5, 300.9, 352.10, 352.12, 352.30, 352.44
Hard-copy lookup: Articles 300 and 352, Check burial table, wet-location rule, PVC support and expansion
Field trigger: Residential NM-B routing, support, protection from physical damage, bored holes, ampacity, and where NM is not permitted.
2020 NEC lookup refs: 300.4, 334.10, 334.12, 334.15, 334.30, 334.80
Hard-copy lookup: Articles 300 and 334, Check permitted uses, not permitted uses, securing/support, protection, ampacity
Field trigger: Commercial MC cable routing, support, securing, fittings, and permitted/not permitted uses.
2020 NEC lookup refs: 330.10, 330.12, 330.30, 330.40
Hard-copy lookup: Article 330, Check permitted uses, not permitted uses, securing/support, fittings
Field trigger: Jobsite temporary wiring, temp lighting, temp receptacles, GFCI, duration, protection, and construction power.
2020 NEC lookup refs: 590.3, 590.4, 590.6
Hard-copy lookup: Article 590, Read duration, wiring methods, and GFCI requirements
Field trigger: Motors, condensers, air-conditioning units, disconnects, motor controllers, MCA/MOCP labels, and overload/OCP questions.
2020 NEC lookup refs: 430.22, 430.32, 430.52, 430.102, 440.4(B), 440.14
Hard-copy lookup: Articles 430 and 440, Check nameplate, disconnect, conductor, overload, and OCPD sections
Field trigger: Portable/standby generator connections, transfer switches, optional standby systems, disconnects, and grounding questions.
2020 NEC lookup refs: 445.18, 250.34, 702.4, 702.5
Hard-copy lookup: Articles 250, 445, 702, Check generator marking/disconnect, grounding, transfer equipment, and standby system rules
Field trigger: Residential or commercial EV charger installation, load, branch circuit, GFCI, and equipment rating questions.
2020 NEC lookup refs: 625.40, 625.41, 625.42, 625.54
Hard-copy lookup: Article 625, Check EVSE branch circuit, rating, load calculation, and GFCI sections
Field trigger: PV systems, rapid shutdown, disconnects, interconnection, backfeed, energy storage, and inverter work.
2020 NEC lookup refs: 690.12, 690.13, 705.12, 706.15
Hard-copy lookup: Articles 690, 705, 706, Check rapid shutdown, disconnects, interconnection, ESS disconnects
Field trigger: Fire alarm circuit class, power-limited wiring, Class 2/3 control wiring, communication separation, and plenum/riser concerns.
2020 NEC lookup refs: 725.3, 725.136, 760.130, 760.135, 800.100
Hard-copy lookup: Articles 725, 760, 800, Check circuit class, separation, installation method, grounding/bonding
Field trigger: Fixtures, supports, closets, wet/damp locations, retrofit work, and LED/ballast disconnect questions.
2020 NEC lookup refs: 410.10, 410.16, 410.30, 410.36, 410.130(G)
Hard-copy lookup: Article 410, Check location, support, closet, and disconnect sections
Field trigger: Pool equipment, bonding grid/equipotential bonding, GFCI, pool lights, pumps, spas, and hot tubs.
2020 NEC lookup refs: 680.21, 680.22, 680.26, 680.42
Hard-copy lookup: Article 680, Read exact pool/spa equipment, receptacle, bonding, and GFCI rules
Field trigger: Patient care spaces, branch circuits, receptacles, essential systems, and healthcare grounding requirements.
2020 NEC lookup refs: 517.13, 517.16, 517.18, 517.19, 517.30
Hard-copy lookup: Article 517, Check patient care space definitions and exact branch/grounding requirements
Field trigger: Conduit fill, jam ratio awareness, conductor dimensions, raceway dimensions, and quick table lookups.
2020 NEC lookup refs: 300.17, Chapter 9 Table 1, Chapter 9 Table 4, Chapter 9 Table 5, Annex C
Hard-copy lookup: Chapter 9, Annex C, Use actual tables in the hard copy for final values