How the 2026 NEC Reorganizes Fire Alarm Cable Rules, and Where Windy City Wire Fits for Specifiers

For anyone who specifies or buys fire alarm cable, security cable or network cable for commercial projects, much of what changed in the 2026 edition of the National Electrical Code is about where the rules live. In a July 2025 analysis for IAEI Magazine, Thomas A. Domitrovich, P.E., wrote that Code Making Panel 1 “has removed the independence of Chapter 8, integrating its content into Chapter 7.” The result is a reorganized family of limited-energy articles, several of them new, and article references that buyers can expect to see in specifications and submittals as jurisdictions adopt the 2026 code.

For procurement teams, the shift puts more weight on a document many buyers already depend on: the product specification sheet. Windy City Wire, a Bolingbrook, Illinois manufacturer and distributor that has served the commercial integration industry since 1994, is one example of a supplier that directs buyers to the specification sheet attached to each cable’s product page to confirm which standards that cable meets. When article numbers change, that cable-level documentation is what buyers end up checking.

What Changed in the 2026 NEC

Writing in Electrical Contractor magazine in January 2026, Mark C. Ode explained that the major requirements for communications systems now sit in four Chapter 7 articles: Article 720, covering general requirements for limited-energy systems; Article 721, covering power sources; Article 722, covering limited-energy cables for power-limited circuits, fault-managed power circuits, optical fiber circuits and communications circuits; and Article 723, covering raceways, cable routing assemblies and cable trays. IAEI’s review of the 2026 changes also lists new articles for overvoltage protection (742) and grounding and bonding (750) of limited-energy systems, and reports that former Articles 770 (Optical Fiber Cables) and 805 (Communications Circuits) are no longer found in the code, with their contents relocated.

Chapter 8 did not disappear. Ode wrote that in the 2026 NEC, Chapter 8 only covers communications system wires and cables located outside and entering buildings. He also noted that Article 725, covering Class 2 and Class 3 power-limited circuits, remains in Chapter 7. The restructuring is not finished: IAEI reports that the 2029 edition is expected to complete the transition with further cleanup and final placement of related provisions.

What It Means for Fire Alarm Cable Buyers

Fire alarm systems keep their own articles. A February 2026 guide from Low Voltage Nation lists power-limited fire alarm work under Article 760 alongside the new general articles: Article 720 for general requirements, Article 721 for power sources and Article 722 for cables. IAEI’s review of the 2026 changes adds that grounding and bonding for limited-energy systems now has its own article, Article 750. The guide also notes that the familiar cable designations remain.

It is worth being precise about what is new. Power-limited fire alarm cable was already tied to Article 722 before this cycle. In a June 2022 review of the 2023 NEC, Stanley Kaufman and Ronald Tellas of the Communications Cable and Connectivity Association quoted the 2023 scope of Article 722 as covering cables used in Class 2 and Class 3 power-limited circuits, power-limited fire alarm (PLFA) circuits, Class 4 fault-managed power circuits and optical fiber. What the 2026 edition adds is a broader Article 722 that now names communications circuits as well, so the cables used across a building’s fire, security and network systems are addressed in one consolidated cable article. For fire-resistive cable systems, IAEI reports that former Article 728 has moved to Article 772, a renumbering that buyers of fire-resistive cable will want to note in their specifications.

Because adoption happens jurisdiction by jurisdiction, the old and new references will overlap for a while. In its guide to Articles 721 through 723, Low Voltage Nation notes that 2026 NEC adoption is rolling out state by state, so a specifier working across several markets can see 2023-era article references on one job and 2026 references on the next. The same guide lists CL2P and CL3P for plenum spaces, CL2R and CL3R for riser applications, and CL2 and CL3 for general purpose use, and notes that plenum cables (CL2P, CL3P, CMP) can substitute for lower ratings. That keeps the plenum cable vs non plenum cable decision at the center of most commercial specifications, regardless of which article number a spec book cites.

The Spec Sheet Becomes the Reference Point

When article numbers shift, the listing marked on the cable and the data on its spec sheet are what connect a product to the code. For a procurement manager reconciling a 2023-based specification with a jurisdiction on the 2026 code, documentation that states each cable’s listings directly shortens the review. Windy City Wire’s approach of documenting compliance at the individual product level fits that need.

Features on the cable itself can help as well. Windy City Wire describes its SmartWire cables as American-made and lists FastFIND Footage Markers and SmartWire Glide Lubrication among their features; one customer quoted on the company’s site says the cable’s built-in measuring tape lets their team make sure there is enough cable on the spool. The company’s product lines span low-voltage fire wire and cable, security and access control cable, category cable and fiber, so a buyer can source several limited-energy cable types from one supplier while the code reorganizes around them.

Supply Continuity During a Code Transition

Code cycles do not happen in isolation from the materials market. In a February 27, 2026 Construction Dive report, Associated Builders and Contractors chief economist Anirban Basu said most of January’s monthly rise in construction input prices could be traced to tariff-induced increases in products such as copper wire, cable, iron, steel and industrial controls equipment. Basu also called the overall increase “not particularly concerning right now,” while cautioning that “trade policy may continue to put upward pressure on certain input prices.”

In that environment, supplier structure matters. In a December 2023 profile, Diploma PLC, which counts Windy City Wire within its Controls Sector, described the business as having control over its own supply chain, a central facility in Illinois, and more than 12,000 regular customers. Windy City Wire currently lists 19 stocking locations nationwide, and in January 2026 it was named a PSA Network P3 Elite Partner, a designation PSA awards based on annual sales thresholds, engagement and contributions to its network of security and AV integrators.

What Specifiers Can Do Now

The 2026 NEC does not change the cable designations buyers rely on, but it does change the vocabulary around them. Practical steps include confirming which NEC edition each project’s jurisdiction has adopted, mapping legacy article references in specifications to the new Chapter 7 numbering, and requesting spec sheets that state each cable’s listings directly. Suppliers that already document compliance cable by cable, as Windy City Wire does, make that mapping exercise shorter. With the 2029 edition expected to finish the consolidation, teams that build these habits now will spend less time reconciling paperwork in the next cycle.