🏠 GEM Resource Hub · 📚 Library · 📘 About RocketLevel · 📘 Playbooks · 🗺️ What's Your Market Worth? · 📅 Book a Call
On a residential insurance job, the standard you followed rarely comes up. On a commercial loss, especially in healthcare, hospitality, or anything with a risk manager involved, your adherence to the recognized standard is the thing that wins the approval and protects you in a dispute. The Institute of Inspection, Cleaning and Restoration Certification (IICRC) standards, developed under American National Standards Institute (ANSI) accreditation, are the industry-recognized standard of care for restoration work. They are also the reference point a risk manager, a carrier, or a court reaches for when the quality of the work is questioned. Knowing them cold is a credibility signal plenty of independents never use.
S500, water damage restoration. The governing document for structural drying. It defines the categories of water by degree of contamination (Category 1, 2, and 3) and the classes of loss, and the principles of drying. The old shop terms "gray water" and "black water" are not the standard's category names, so use the numbers in anything you put in writing. Note: there is no Category 4 water; if you hear someone use it, they have not read the standard. (Current edition: 2021, fifth edition; a revision is underway, so confirm the latest.)
S520, mold remediation. Governs containment, engineering controls, and the post-remediation verification that clears the job. On commercial mold the decision maker often requires a third party to write the protocol and clear the work. (Current edition: 2024, fourth edition.)
S540, trauma and crime scene. Governs biohazard and trauma cleanup, including bloodborne-pathogen handling under OSHA's bloodborne pathogens standard, 29 CFR 1910.1030. Keep that citation in its lane. 1910.1030 is a general industry standard and it does not reach construction work, so it governs a trauma or biohazard cleaning scope but does not carry across into the demolition and drying on a Category 3 loss. Cite it where it applies, and cite Part 1926 where you are doing construction. (Current edition: Second Edition, 2023. The 2017 first edition is superseded. Check which one a client's specification actually names before you agree to it.)
S900, drug, cannabis, and tobacco residue remediation. ANSI/IICRC S900, First Edition, 2025, titled Standard for Professional Remediation of Precursors, Drug Residues, and Associated Chemical Waste. Plenty of the trade still does not know this one exists, and it governs work commercial decision makers are already asking about. It covers methamphetamine and other illicit drug residue, cannabis residue, and tobacco residue, and it runs from inspection and characterization, through assessing the level of contamination, into structural and contents remediation, waste handling, and post-remediation verification. It applies after law enforcement or the regulatory agency has released the scene, not while it is still theirs.
Where you will meet it: an apartment turnover where the last tenant was cooking or smoking, a warehouse bay or industrial suite converted to a cannabis grow and handed back with resin and pesticide residue on every surface, a hotel floor or self-storage building where tobacco residue is the actual scope and a deodorization proposal will not hold. Before you quote methamphetamine work, find out whether your state has a meth-contaminated property statute, because a state with one may set the clearance number by rule, require a certified consultant or contractor, and make it unlawful for an uncertified firm to do the work at all, so look up yours. The state rule governs; S900 tells you how to do the job well inside it. See Vertical Playbook: Multifamily and Apartment Portfolios for where those statutes bite.
S700, fire and smoke restoration. First Edition, 2025. Governs assessment of fire residues and odors, restoration cleaning, and odor management. Know its limits before you lean on it in front of a decision maker: S700 does not comprehensively address healthcare facilities, laboratories, or clean rooms, and it does not cover wildfires, chemical fires, or industrial fires that present environmental hazards. On any of those, telling a facility director "we work to S700" overstates what the standard covers. Build the scope with the appropriate specialist instead. One caution on that wildfire carve-out, and it runs the other way from what people assume. A revision is underway, which the IICRC's own S700 page confirms, but that page does not say what the revision will contain and does not say wildfire scope is being added. Do not plan around the exclusion disappearing. Wildfire has its own separate draft in the catalog, BSR/IICRC S760 (BSR marks a draft still before the ANSI Board of Standards Review, explained below), and a separate draft is not an S700 revision. Read the scope section of the edition you actually hold.
ANSI/IICRC S400, professional cleaning, maintenance, and restoration of the commercial built environment (first edition, 2025). ANSI/IICRC S400, First Edition, published in 2025, is aimed squarely at commercial work. It addresses how to clean, maintain, and restore the materials, assemblies, fixtures, and equipment inside a building envelope, which is exactly the language a facility manager or a corporate real-estate decision maker speaks. If your growth is into commercial portfolios, this is the standard that maps to their world.
ANSI/IICRC S410, professional cleaning of the built environment for infection prevention and control (first edition, 2025). Built on top of S400, it covers cleaning, sanitizing, and disinfecting to reduce exposure to germs and pathogens in non-healthcare buildings: schools, offices, hospitality, community living. On healthcare-adjacent and hospitality accounts where a decision maker is sensitive to infection risk, being conversant in S410 is a real differentiator.
ANSI/IICRC S590, assessing HVAC systems following a water, fire, or mold damage event (first edition, 2023). The IICRC standard for HVAC assessment after a loss. It governs how the air system is evaluated, what is restorable versus not, and how the assessment is documented and reported. On a commercial loss the air system is often part of the damage, and S590 is the standard a qualified assessor should be working to. (See HVAC and Duct Contamination After a Commercial Loss (Awareness) for how this shows up on a job.)
One more body to know on fire work: on a fire-loss reconstruction, National Fire Protection Association (NFPA) codes for fire and life safety (for example the fire-alarm and fire-code requirements that govern alarm systems, sprinklers, and egress) often intersect the rebuild, so the right design professional or the authority having jurisdiction (AHJ) may need to weigh in on those elements. Nobody expects you to master NFPA, only to recognize when it is in play and bring in the right party. Unlike the IICRC standards, the NFPA codes cost nothing to read. NFPA free access puts them online with a free account, including NFPA 25 for sprinkler impairment, 51B for hot work, 101 for life safety, and 241 for construction and demolition operations. Confirm current editions of any standard before you cite it; they are revised on their own cycles.
Carpet and upholstery cleaning is how a lot of firms get into a building before there is ever a loss, and contents work is how they stay. Those service lines have their own standards, and they are the ones a client reaches for when they claim your crew damaged something.