Codes of Record

What applies to my job?

Pick the state and the product you build, install, or inspect. The card below answers from each state’s own record.

Solar PV in Pennsylvania

Which codes apply? In Pennsylvania, solar PV systems fall under the 2020 NEC, the 2021 IRC, the 2021 IBC, and the 2021 IFC.

Rooftop and ground-mounted photovoltaic arrays and their wiring. State record read Oct 18, 2026. Data as of Oct 26, 2026.

Codes that reach solar PV systems

The edition Pennsylvania enforces for each code that governs the product, and the part of the code that does.

  1. NECNational Electrical Code
    2020 NECPartial

    in force since Jan 1, 2026 · Statewide, with exceptions

    Where it reaches the product. Article 690, solar photovoltaic systems, with 705 for the interconnection and 690.12 for rapid shutdown.

    NFPA 70 (National Electrical Code) as referenced by the Pennsylvania UCC’s 2021 IBC · 34 Pa. Code Sec. 403.21 (adopts the 2021 IBC, which references NFPA 70), Regulation #12-125

    The Pennsylvania NEC record
  2. IRCInternational Residential Code
    2021 IRCVerified

    in force since Jan 1, 2026 · Statewide, with exceptions

    Where it reaches the product. Section R324, solar energy systems.

    Pennsylvania Uniform Construction Code (UCC), 2021 International Residential Code as adopted · 34 Pa. Code Sec. 403.21 as amended by Regulation #12-125 (55 Pa.B., Nov. 8, 2025); Construction Code Act, 35 P.S. 7210.304

    The 2024 IRC is in development.

    The Pennsylvania IRC record
  3. IBCInternational Building Code
    2021 IBCVerified

    in force since Jan 1, 2026 · Statewide, with exceptions

    Where it reaches the product. Rooftop structures and the structural load of the array.

    Pennsylvania Uniform Construction Code (UCC), 2021 International Building Code as adopted · 34 Pa. Code Sec. 403.21 as amended by Regulation #12-125 (55 Pa.B., Nov. 8, 2025); Construction Code Act, 35 P.S. 7210.304

    The 2024 IBC is in development.

    The Pennsylvania IBC record
  4. IFCInternational Fire Code
    2021 IFCVerified

    in force since Jan 1, 2026 · Statewide, with exceptions

    Where it reaches the product. Chapter 12, section 1205, solar photovoltaic power systems and roof access.

    2021 International Fire Code, adopted by reference within the Pennsylvania UCC · 34 Pa. Code Sec. 403.21 as amended by Regulation #12-125 (55 Pa.B., Nov. 8, 2025); Construction Code Act, 35 P.S. 7210.304

    The 2024 IFC is in development.

    The Pennsylvania IFC record

Pennsylvania laws that name solar PV systems

On the site: two laws, rules, orders, and bills, newest first.

Law or ruleKindStageDateWhat it does
PPL distributed energy resource management planDocket P-2024-3049223Commission orderPartialIn forceJan 3, 2026Lets the utility expand its distributed energy resource management devices and manage smart inverter settings on customer solar and batteries under set conditions. Source (opens in a new tab)
Solar for Schools grantsSolar for Schools Grant Program pageProgram rulePartialIn force–Funds grants to schools and colleges for solar energy systems, covering equipment, installation, permit fees, energy storage, and utility interconnection. Source (opens in a new tab)

Every Pennsylvania law on solar PV systems, with filters

For information only. Your local building or fire official decides which code applies. We check state records often but can miss a recent change, so confirm with your official before you design, permit, or install. Terms of use