Under OSHA rules, human feces is a biohazard only when it contains visible blood. The Bloodborne Pathogens Standard at 29 CFR 1910.1030 explicitly excludes uncontaminated feces from its definition of Other Potentially Infectious Materials, so the heightened biohazard requirements do not apply to ordinary fecal cleanup.1Occupational Safety and Health Administration. 29 CFR 1910.1030 – Bloodborne Pathogens The moment blood is visible in the material, though, the full standard kicks in and the employer has to treat it as infectious for HIV, HBV, and other bloodborne pathogens. Even when feces is uncontaminated, employers are not off the hook. General sanitation rules and the General Duty Clause still require them to clean it up and protect workers from illness.
How OSHA Classifies Human Feces
The Bloodborne Pathogens Standard (BPS) is OSHA’s main tool for regulating biological hazards on the job. It works from two categories: blood and Other Potentially Infectious Materials (OPIM). OPIM covers body fluids like semen, vaginal secretions, and cerebrospinal fluid, along with any body fluid visibly contaminated with blood or one that cannot be distinguished from blood.1Occupational Safety and Health Administration. 29 CFR 1910.1030 – Bloodborne Pathogens Those materials are presumed infectious because they can realistically transmit pathogens like Hepatitis B and HIV.
Feces, urine, vomit, and sweat sit outside that definition unless visible blood is present. OSHA confirmed the point in an interpretation letter, stating these materials “are not included in the standard’s definition of ‘other potentially infectious materials’ unless visibly contaminated with blood.”2Occupational Safety and Health Administration. Determining the Presence of Blood in Mixture That Comprises Human Wastes in Sewage The logic is narrow: intact feces without blood is not a meaningful route for the specific bloodborne pathogens the standard targets. It does not mean the material is safe. It means the BPS is not the rule that governs it.
When Feces Becomes a Regulated Biohazard
Visible blood changes everything. Once blood is present in the feces, the material meets the OPIM definition and the employer must handle it as if it carries HIV, HBV, and other bloodborne pathogens.1Occupational Safety and Health Administration. 29 CFR 1910.1030 – Bloodborne Pathogens This is not a judgment call. If you can see blood, the BPS applies.
The rule also covers the gray zone. When body fluids are mixed and it is “difficult or impossible to differentiate between body fluids,” the whole mixture must be treated as OPIM.1Occupational Safety and Health Administration. 29 CFR 1910.1030 – Bloodborne Pathogens So if a worker encounters feces in a situation where blood contamination is plausible but not clearly visible, the safe default is to follow the standard.
At that point, Universal Precautions apply. OSHA defines the approach as one where “all human blood and certain human body fluids are treated as if known to be infectious for HIV, HBV, and other bloodborne pathogens.”1Occupational Safety and Health Administration. 29 CFR 1910.1030 – Bloodborne Pathogens Any employee involved in the cleanup has occupational exposure and must be protected under the full standard, including PPE, training, the Hepatitis B vaccine offer, and post-exposure follow-up.
Cleanup Requirements When the BPS Applies
Once blood-contaminated feces triggers the standard, specific housekeeping rules kick in. Contaminated work surfaces must be decontaminated with an appropriate disinfectant immediately or as soon as feasible after a spill.1Occupational Safety and Health Administration. 29 CFR 1910.1030 – Bloodborne Pathogens The rule itself does not name products. OSHA compliance guidance recommends either an EPA-registered tuberculocidal disinfectant or a solution of 5.25% sodium hypochlorite (household bleach) diluted between 1:10 and 1:100 with water.3Occupational Safety and Health Administration. Bloodborne Pathogen Standard as It Applies to Disinfectants
Employers must also keep a written cleaning schedule that reflects the location, the surface, and the type of work done in the area. A hospital restroom and a warehouse break room do not get the same protocol.
Personal Protective Equipment
Employers must provide appropriate PPE at no cost to any employee who may contact blood or OPIM. The standard lists gloves, gowns, face shields, masks, and eye protection as examples, though the combination depends on the task and the reasonably anticipated exposure.1Occupational Safety and Health Administration. 29 CFR 1910.1030 – Bloodborne Pathogens For blood-contaminated fecal cleanup, that typically means fluid-resistant gloves, eye protection, and a gown or apron. Double-gloving with nitrile is common for heavier contamination, though the standard does not mandate a specific glove material.
Regulated Waste Disposal
Items contaminated during cleanup qualify as regulated waste. Containers must be closable, built to contain contents without leaking, and labeled or color-coded with the biohazard symbol.1Occupational Safety and Health Administration. 29 CFR 1910.1030 – Bloodborne Pathogens They must be closed before removal to prevent spills. A sturdy leak-resistant biohazard bag usually does the job, but if the bag is punctured or its exterior gets contaminated, it goes inside a second bag.
What Still Applies When Feces Is Uncontaminated
The BPS exclusion is not a permission slip. Uncontaminated feces can still carry enteric pathogens like Norovirus, E. coli, and Salmonella, which spread through the fecal-oral route rather than through blood. Those organisms are not covered by the Bloodborne Pathogens Standard, but they are covered by other OSHA rules.
The general sanitation standard at 29 CFR 1910.141 requires every workplace to be kept clean, waste to go into leak-proof containers with tight-fitting covers, and refuse to be removed frequently enough to prevent a health hazard.4eCFR. 29 CFR 1910.141 – Sanitation The standard also prohibits using water contaminated with fecal coliform for washing any part of a worker’s body or for food-related purposes.5Occupational Safety and Health Administration. 29 CFR 1910.141 – Sanitation
Behind the specific standards sits the General Duty Clause in Section 5(a)(1) of the OSH Act, which requires every employer to provide a workplace “free from recognized hazards that are causing or are likely to cause death or serious physical harm.”6Occupational Safety and Health Administration. OSH Act of 1970 – Section 5 Duties If an employer knows uncontaminated feces poses a recognized risk of serious illness and does nothing, a General Duty Clause citation is on the table even though the BPS technically does not apply. That is the catch-all that stops employers from using the OPIM exclusion as an excuse to ignore obvious hazards.
Penalties for Getting It Wrong
Employers who fail to meet their BPS obligations face steep fines. As of the annual adjustment effective January 15, 2025, the maximum penalty for a serious or other-than-serious violation is $16,550 per violation. Willful or repeated violations carry a maximum of $165,514 per violation. Failing to correct a cited violation within the abatement period adds $16,550 per day beyond the deadline.7Occupational Safety and Health Administration. OSHA Penalties These amounts adjust for inflation each January.
The citations that come up most often look basic on paper but trip up employers constantly: no written Exposure Control Plan, no annual update to it, PPE that workers had to pay for, a late or missing Hepatitis B vaccine offer, and training delivered in a language workers cannot follow. Each gap is a separate citable violation, so one inspection can produce penalties that stack quickly.