2.2 Prohibited Practices and Out-of-Scope Work
Key Takeaways
- A manicurist cannot diagnose medical conditions; when a client has visible open sores, inflamed skin, rash, or a parasitic infestation, refuse the service and refer the client to a physician (WAC 308-20-110(1)(e)–(f)).
- WAC 308-20-110(15) prohibits 100% liquid methyl methacrylate (MMA) monomer and methylene chloride products, and forbids having FDA-banned cosmetic ingredients on the premises.
- WAC 308-20-110(16) prohibits any razor-edged tool designed to remove calluses.
- Fish pedicures are illegal in Washington under WAC 308-20-110; DOL guidance explains that living fish cannot be disinfected.
- A licensee who has open sores or who is showing symptoms of an infectious or contagious disease, skin disorder, or parasitic infestation must not provide services.
2.2 Prohibited Practices and Out-of-Scope Work
Section 2.1 told you what a Washington manicurist may do. This section is the matching stop list. Clients, salon owners, and social-media trends will ask you to go further. The exam will test whether you know that further is unlawful even if the client begs, tips extra, or signs a homemade waiver.
You are not a diagnosing clinician
A manicurist observes nails and surrounding skin so the service can be planned safely. Observation is not a medical diagnosis. You do not name diseases, prescribe treatment, promise to cure an infection, or keep working while you wait to see if a sore improves. If the presentation looks medical, your professional job is to stop, explain that the service is outside your license, and refer the client to a physician.
That limit protects the client and protects you. Calling a green nail Pseudomonas in a chart, packing an open wound with salon product, or cutting into inflamed tissue is not advanced manicuring. It is out-of-scope practice dressed up as customer service. Use plain language: I cannot diagnose this, I cannot perform a service on this skin, and you should see a physician.
WAC 308-20-110(1)(e)–(f): refuse the service
WAC 308-20-110(1)(e) is direct. A licensee must not perform or continue services on a client with visible open sores, inflamed skin, rash, or parasitic infestations. The rule does not say try a shorter service, skip the soak, or work around the sore with extra gloves. Perform and continue are both barred. If you notice the condition during consultation, do not start. If you notice it after you have already begun, stop.
WAC 308-20-110(1)(f) turns the same idea on the licensee. No licensee who knowingly has open sores, or who is exhibiting symptoms of an infectious or contagious disease or a disorder of the skin or a parasitic infestation, shall provide services in manicuring (or the other Chapter 18.16 practices) while those symptoms are present. Coming to work with a draining lesion on your finger and wrapping it in a finger cot is not a workaround the rule blesses. Stay off the floor until you are not exhibiting those symptoms.
If a licensee or a client has exhibited the symptoms in (e) and (f), the rule requires cleaning and disinfecting the area in which that person received or provided services, including equipment and implements that could have been touched, and the work and waiting areas. Sanitation after the fact does not authorize the service you already should have refused.
Salon scenario — Olympia rash. A client sits down in Olympia with red, inflamed skin around several nails and asks you to still do gel because of a wedding. You refuse the service, do not guess at a diagnosis, and refer the client to a physician. You do not apply product beside the rash and hope.
Salon scenario — licensee cold sore versus licensee finger infection. A seasonal cold is not the same fact pattern as an open sore on the hand you use at the table. Subsection (f) is about open sores and infectious, contagious, skin-disorder, or parasitic symptoms. If your working skin is involved, you do not provide services while those symptoms are present.
Banned products: MMA, methylene chloride, and FDA-banned ingredients
WAC 308-20-110(15) is the hazardous-substance rule. No establishment or school may have on the premises cosmetic products containing hazardous substances banned by the U.S. Food and Drug Administration for use in cosmetic products. Use of 100% liquid methyl methacrylate monomer and methylene chloride products is prohibited. No product may be used in a manner the FDA disapproves.
Three exam-ready points sit in that paragraph:
- Possession on the premises of FDA-banned cosmetic ingredients is already a problem. The rule is not limited to a bottle you opened today.
- 100% liquid MMA monomer is named and prohibited. MMA shows up in cheap, too-strong acrylic systems. It is not legalized by a supplier nickname, a client's request for nails that never break, or a claim that you only use a little.
- Methylene chloride products are prohibited. Do not keep a banned remover on the cart because it works faster.
Using a lawful product in a manner the FDA disapproves is also barred. Follow the label. A waiver does not override WAC 308-20-110(15).
Salon scenario — Kent wholesale special. A Kent booth renter is offered a monomer that bonds like steel. If the product is 100% liquid MMA, it cannot be used and it cannot live in the dispensary. Send it back. Switch to a lawful ethyl-methacrylate or other permitted system you were trained to use.
Banned instruments: razor-edged callus tools
WAC 308-20-110(16) prohibits any razor-edged tool which is designed to remove calluses. That is the credo blade, the razor paddle, and similar shavers sold to slice heel callus. It is not a hidden permission to shave calluses if you disinfect the blade, if the client has thick heels, or if you call the tool a pedicure knife.
Distinguish this from implements that are not designed as callus razors. A disinfected metal cuticle pusher, a nail clipper, or a cuticle nipper used for cuticle work is not the instrument subsection (16) names. An electric file used on an enhancement by a licensed manicurist is an apparatus under RCW 18.16.020(31), not a razor-edged callus tool. The prohibited object is the razor-edged tool designed to remove calluses. If the design purpose is callus shaving with a blade, leave it out of the Washington salon.
Salon scenario — Yakima pedicure add-on. A Yakima client wants a razor-smooth heel like a medical office visit. You may use lawful pedicure methods taught later in this guide, within sanitation rules and without treating medical conditions. You may not pull a callus razor from a drawer. Offer a physician referral if the skin problem looks medical rather than cosmetic.
Fish pedicures are illegal
Washington DOL's cosmetology resources page states that fish pedicures are illegal in Washington under WAC 308-20-110. Do not look for a made-up WAC subsection number that the WAC text does not contain. DOL applies the sanitation chapter as a whole. Living fish cannot be disinfected. Tools, basins, and implements used in manicuring and pedicuring must be able to meet the cleaning and disinfection standards in WAC 308-20-110. A tank of fish used to nibble skin cannot be put through that process.
A fish-spa chair in a tourist district, a mall kiosk, or a salon suite is still unlawful. Relabeling the service as a wellness treatment or using saltwater does not create a disinfection method the rule accepts. If a manager asks you to supervise the tank, the correct answer is that DOL says the service is illegal under WAC 308-20-110.
Other work that is not manicuring
Stay inside nails, cuticles, and the cosmetic care RCW 18.16.020(31) names. The following are out of scope even if a client offers more money:
- Diagnosing or treating disease, including packing, draining, or medicating an infection as if you were a clinician
- Injections of any kind
- Medical procedures, including using a device as a medical treatment rather than as a manicuring apparatus
- Hair, chemical-wave, or full esthetic services unless you hold the matching license
- Working on visible open sores, inflamed skin, rash, or parasitic infestations
| Situation | Lawful manicurist response |
|---|---|
| Visible open sores, inflamed skin, rash, or parasitic infestation on the client | Do not start or continue service; do not diagnose; refer to a physician |
| Licensee has open sores or infectious, skin-disorder, or parasitic symptoms | Do not provide services while those symptoms are present |
| 100% liquid MMA monomer or methylene chloride product | Prohibited; FDA-banned cosmetic ingredients may not be on the premises |
| Razor-edged tool designed to remove calluses | Prohibited under WAC 308-20-110(16) |
| Fish pedicure tank | Illegal in Washington under WAC 308-20-110; living fish cannot be disinfected |
| Client wants you to name and treat a suspected fungus | Refuse diagnosis and treatment; refer to a physician |
How to refuse without arguing medicine
In a Bellingham or Federal Way suite, the script can stay short. I am a licensed manicurist. I cannot diagnose this, and Washington rules do not allow me to perform a service on visible open sores, inflamed skin, rash, or a parasitic infestation. Please see a physician, and I will be glad to reschedule when the skin is intact. That sentence is consumer protection, not lost revenue. The next section explains how DOL treats shops that ignore these limits or let unlicensed people work anyway.
Which product rule is stated in WAC 308-20-110(15)?
WAC 308-20-110(16) prohibits which instrument or practice?
How does Washington treat fish pedicures?