The Institute of Inspection, Cleaning and Restoration Certification (IICRC) has opened public review for the IICRC S400 Standard for Professional Cleaning, Maintenance, and Restoration of the Commercial Built Environment as part of the ANSI 45-day public review period. Download the draft Standard and submit your comments online from today May 31st to July 15th, 2024 here:

All comments must be submitted using the online comment form no later than July 15, 2024.

The IICRC S400 standard focuses on the commercial built environment and defines frequencies, objectives, results, principles, and practices to clean, maintain, and restore the built environment. The built environment is defined as materials, building assemblies, structures, furniture, fixtures, and equipment located inside a building envelope.

For more information on other certification programs and standards offered by the IICRC, visit To purchase a copy of IICRC standards, please visit