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IGCC—Powered by Standard 189.1

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International Green Construction Code®

A Comprehensive Solution for High-Performance Buildings


IgCC® — Powered by ANSI/ASHRAE/ICC/USGBC/IES Standard 189.1

  • A life safety code
  • Offers effective useful strategies that provide measurable benefits
  • Provides comprehensive green building strategies
  • Can be tailored to fit your needs
  • Compatible with local energy codes and LEED®
  • Under continuous maintenance
  • Offers tools and resources to help with implementation and adoption

The IgCC is a modern, up-to-date model code that governs the environmental impact of commercial buildings. It contains clear and specific requirements with provisions that promote safe and sustainable construction. This comprehensive green code establishes minimum regulations for building systems and site considerations using prescriptive and performance-related provisions. 

The IgCC was developed in collaboration through its cosponsors—International Code Council, ASHRAE, U.S Green Building Council, Illuminating Engineering Society, and American Institute of Architects.