Hazard communication for cleaning and pest chemicals

Why this standard keeps showing up in citations

OSHA's preliminary list of the most frequently cited standards for fiscal year 2026 puts Hazard Communication for general industry at number two, behind only construction fall protection^[1]. Cleaning and pest control companies sit squarely in general industry, and most of them are small. Of the 67,799 janitorial and maid service establishments with employees in 2023, 61.3% had fewer than five people on payroll^[6]. Small shops rarely have a safety manager, so the paperwork side of chemical safety is usually the first thing an inspector finds missing.

The work itself also carries real risk. Fatal injuries among building and grounds cleaning and maintenance workers rose from 337 in 2023 to 356 in 2024^[7]. Most of those deaths are not chemical exposures, but they are a reminder that a cleaning route is not an office job and should be run with written safety rules.

What the standard actually asks you to do

Strip away the legal text and the Hazard Communication Standard asks an employer whose workers handle hazardous chemicals to do four things^[2][3]:

1. Write it down. Keep a written hazard communication program at each workplace that explains how you handle labels, safety data sheets and training^[3].
2. Know what you use. Keep a list of every hazardous chemical and a current SDS for each one. SDSs follow a fixed 16-section format, so once a tech can read one, they can read them all^[2].
3. Label every container. Each container of a hazardous chemical in the workplace must be labeled, tagged or marked^[3]. Manufacturer labels carry a signal word, pictograms and hazard statements^[2].
4. Train people. Train workers when they are first assigned and again whenever a chemical hazard they have not been trained on is introduced^[3].

The consumer-product exemption rarely saves a cleaning company

Owners often assume that a bottle bought at a big-box store is exempt. The standard does exempt consumer products, but only when the employer can show the product is used for its intended purpose and the exposure is no greater in duration and frequency than a consumer would experience^[3]. A homeowner sprays a bathroom cleaner once a week. Your tech may spray it in six bathrooms before lunch, every day. That gap is why most commercial and residential cleaning crews should treat every product on the van as covered.

Build the chemical inventory in one afternoon

1. 01

   Empty one van and the stock shelf

   Pull every bottle, jug, aerosol and bait station out where you can see it. Include products techs bought themselves.

2. 02

   Record product name and manufacturer

   Write the exact product name from the label, not the nickname your crew uses. "Blue stuff" is not an inventory entry.

3. 03

   Match each product to its SDS

   Download the current SDS from the manufacturer's site. If you cannot find one, call the supplier or stop using the product.

4. 04

   Cut the list

   Most small companies carry duplicates. Fewer products means fewer SDSs, fewer labels and less training.

5. 05

   Assign an owner

   Name one person who adds new products to the list before they go on a van. That single rule keeps the program current.

Getting safety data sheets to techs in the field

Safety data sheets must be readily accessible to employees during each work shift while they are in their work areas^[3]. For a mobile crew, the work area is a customer's kitchen or crawl space, so a binder in the office is not enough on its own. Pick a method that works without help from the office.

Spray bottles and dilution stations

The most common gap on a cleaning van is an unlabeled spray bottle. The standard lets you skip a label on a portable container only when the chemical is transferred into it for the immediate use of the person who filled it^[3]. A bottle filled at the shop at 7 a.m. and used at four homes is not immediate use. Label it.

• Print labels with the product name, the signal word and the main hazard, copied from the manufacturer label or SDS.
• Use waterproof labels; paper tape smears within a week.
• Mark the dilution ratio and the date mixed, which also helps quality control.
• Never reuse a bottle that once held a different product without stripping the old label.
• Keep a roll of blank labels in every van so techs can fix a peeled label on the spot.

Pest control: HazCom plus licensing

Pest control companies live under two sets of rules. State laws require pest control workers to be licensed, which usually means training and an exam^[5]. For restricted use pesticides, EPA estimates about one million certified applicators and roughly 930,000 noncertified applicators, and noncertified people must be trained and work under a certified applicator's direct supervision^[4]. Pesticide labels follow EPA rules, while cleaners, degreasers and other shop chemicals still fall under HazCom. The simple answer is one training log that records both your HazCom sessions and each tech's pesticide license and supervision status.

A 20-minute training session crews will sit through

1. Minute 0 to 5: hand each tech one SDS from a product they use daily. Ask them to find the first-aid section and the required gloves or eye protection.
2. Minute 5 to 10: show the label on the concentrate and the label on a spray bottle side by side. Point out the signal word and pictograms.
3. Minute 10 to 15: walk through mixing rules. Name the two or three products in your inventory that must never be combined, using the SDS reactivity section.
4. Minute 15 to 20: have each tech show where the SDS lives in their van or on their phone. Sign the training log.

Example: a fictional four-person residential cleaning company runs this session on the first Monday of each quarter and again the day a new product arrives. The owner keeps a one-page log per tech with the date, products covered and a signature. When a new hire starts mid-quarter, she gets the session on day one before her first route.

Customer-supplied products and shared job sites

Two situations trip up even careful owners. The first is the client who hands your crew their own products: an office manager with a closet of floor finish, or a homeowner who insists on a particular stone cleaner. If your employees use it, treat it as part of your program for that account. Ask for the SDS or download it, add the product to the account notes and make sure the tech assigned to that client has seen it.

The second is the shared job site. Post-construction cleans, property turnovers and commercial accounts often put your crew next to painters, flooring installers or another pest company. Ask the site contact what chemicals other trades are using that day and tell them what you are bringing in. A one-line note in the job ticket, such as "floor stripper in use, ventilate the east wing", protects your people and theirs.

• Add a "products supplied by client" field to commercial account records.
• Keep client SDSs in the same folder as your own, filed under the account name.
• Brief the tech before the first visit, not after something spills.

A quick self-audit

• Is the written program dated and does it name who maintains the inventory?
• Does every product on every van have a current SDS?
• Can a tech open an SDS from a customer's basement without calling anyone?
• Is every spray bottle labeled?
• Does the training log show each employee, date and topic?
• For pest techs, is each license or supervision arrangement current?

If you answer no to any of these, fix that item first. Then add the self-audit to the same calendar as vehicle checks and OSHA recordkeeping so it happens every quarter. For leftover product and empty containers, see the guide to disposing of chemicals and old equipment.