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Standard References

Codes and Standards References

The ICC/SRCC standards for solar heating and cooling equipment are referenced in many building codes. These codes require compliance with the standards, which can be shown using SRCC’s various certifications. See below for some examples and more information. This list is not exhaustive, and many individual states that use the model codes listed as the basis of their state codes cite the ICC/SRCC standards.

Note: Where specific sections are given, they are given as examples of reference locations, but may not represent all citations related to solar heating & cooling standards in the document.

ICC 901/SRCC 100, Solar Thermal Collector Standard

  • 2024 International Building Code (IBC): Section 3111.2.1
  • 2024 International Residential Code (IRC): Chapter 25
  • 2024 International Mechanical Code (IMC): Chapter 14
  • 2024 International Swimming Pool & Spa Code (ISPSC): Section 317.6.2
  • 2021 Uniform Solar Hydronics & Geothermal Code (USHGC): Section 502.6
  • City of Los Angeles Plumbing Code
  • 2022 California Energy Code (Title 24): Section 150.0(n), 160.4(c), RA 4.4.20
  • NSF/ANSI/CAN 50 – 2023, Equipment & Chemicals for Swimming Pools, Spas, Hot Tubs & Other Recreational Water Facilities: Section 23.2.1
  • 2018 CARICOM Regional Energy Efficiency Building Code (CREEBC): Section R403.5.6.2.1

ICC 900/SRCC 300, Solar Thermal System Standard

  • 2024 International Building Code (IBC): Section 3111.2.1
  • 2024 International Residential Code (IRC): Chapter 25
  • 2024 International Plumbing Code (IPC): Section 502.1
  • 2024 International Mechanical Code (IMC): Chapter 14
  • 2021 Uniform Solar Hydronics & Geothermal Code (USHGC)
  • City of Los Angeles Plumbing Code
  • 2022 California Energy Code (Title 24): Section 150.0(n), 160.4(c), RA 4.4.20
  • 2018 CARICOM Regional Energy Efficiency Building Code (CREEBC): Section R403.5.6.2.1

ICC 902/PHTA 902/SRCC 400, Solar Pool & Spa Heating System Standard

  • 2024 International Swimming Pool & Spa Code (ISPSC): Section 317.2
  • 2025 California Building Energy Efficiency Standards (aka CA Energy Code or Title 24, Part 6): Section 110.4 (b) and (c) and Reference Appendix JA-16