Solar PV in Delaware
Which codes apply? In Delaware, solar PV systems fall under the 2023 NEC, local adoption of the IRC, local adoption of the IBC, and NFPA 1 in place of the IFC.
Codes that reach solar PV systems
The edition Delaware enforces for each code that governs the product, and the part of the code that does.
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NECNational Electrical CodeThe Delaware NEC record2023 NECVerified
in force since Jan 1, 2026
Where it reaches the product. Article 690, solar photovoltaic systems, with 705 for the interconnection and 690.12 for rapid shutdown.
Delaware State Fire Prevention Regulations (Regulation 701), 2026 edition · 1 DE Admin. Code 701 section 3.1.42; 29 DE Reg. 509 (12/01/25)
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IRCInternational Residential CodeThe Delaware IRC recordLocal adoptionPartial
Where it reaches the product. Section R324, solar energy systems.
16 Del.C. 7601
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IBCInternational Building CodeThe Delaware IBC recordLocal adoptionPartial
Where it reaches the product. Rooftop structures and the structural load of the array.
16 Del.C. 7601
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IFCInternational Fire CodeThe Delaware IFC recordAnother model codeVerified
Where it reaches the product. Chapter 12, section 1205, solar photovoltaic power systems and roof access.
Delaware State Fire Prevention Regulations (NFPA 1, Fire Code, 2024) · 1 DE Admin. Code 701 section 3.1.1; 29 DE Reg. 509 (12/01/25)
Delaware laws that name solar PV systems
Statutes, rules, and commission orders are tracked state by state.
No Delaware law or rule on the site names solar PV systems. The product page shows the states that have one.
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