I want you to think about something for a moment.
Perchloroethylene — PERC — is classified by the International Agency for Research on Cancer as a probable human carcinogen. It is a central nervous system depressant. It causes liver and kidney damage with chronic exposure. It contaminates groundwater and soil with persistence measured in decades.
And it is the primary solvent used in approximately 70 percent of drycleaning operations in the United States.
Cal/OSHA does not view PERC exposure as a minor compliance issue. They view it as a public health enforcement priority. And they are not alone — SCAQMD, DTSC, and the EPA are all watching the same facilities, enforcing overlapping regulations, and sharing information.
If you operate a laundry or drycleaning business in California and you think compliance is just about keeping the machines running, you are about to learn otherwise.
Perchloroethylene Exposure: The Defining Enforcement Issue
Cal/OSHA's permissible exposure limit for PERC is 25 parts per million as an 8-hour time-weighted average, with a short-term exposure limit of 100 ppm over 15 minutes. These are enforceable limits with real monitoring requirements and real penalties for exceedance.
Here is where drycleaning operations are getting cited:
**Exposure during machine loading and unloading.** The highest PERC exposures in drycleaning operations occur when workers open machine doors to load and unload garments. Even in closed-loop machines, residual PERC vapor escapes when the door is opened. Fourth and fifth generation machines have significantly reduced these emissions, but older machines — and there are thousands of older machines still operating in California — release substantial vapor concentrations during door opening events.
**Transfer machine operations.** Operations that use separate washer and dryer units (transfer machines) create the highest PERC exposures because wet, solvent-laden garments must be physically moved from the washer to the dryer. Workers performing this transfer are exposed to liquid PERC on garments and concentrated vapor in the immediate breathing zone. Cal/OSHA treats transfer machine operations as high-priority enforcement targets.
**Maintenance and repair activities.** When drycleaning machines are opened for maintenance — filter changes, still cleaning, lint trap cleaning, pump repairs — workers can be exposed to concentrated PERC in liquid and vapor form. These maintenance exposures frequently exceed the short-term exposure limit and sometimes approach immediately dangerous concentrations.
**Failure to conduct exposure monitoring.** Cal/OSHA requires initial exposure monitoring for PERC in drycleaning operations, and periodic monitoring when exposure levels are above the action level (12.5 ppm). Many drycleaning operators have never conducted any exposure monitoring, creating an automatic citation for failure to assess employee exposure.
**Inadequate ventilation.** Local exhaust ventilation at machine doors, general dilution ventilation in the work area, and makeup air systems are all required elements of PERC exposure control. Operators who rely on opening the back door for ventilation are not meeting the standard.
**No written exposure control plan.** When PERC exposures exceed the PEL, employers must develop a written compliance plan documenting the controls they will implement to reduce exposures. This plan must include a schedule for implementation and must be updated as conditions change.
**Medical surveillance gaps.** Employees exposed to PERC above the action level must be provided medical surveillance including baseline and periodic examinations. Most small drycleaning operations have never established a medical surveillance program.
PERC exposure citations carry serious classification penalties of $18,000 to $25,000 per instance. A comprehensive inspection of a non-compliant drycleaning operation can generate six to ten individual PERC-related citations, creating total penalty exposure of $100,000 to $250,000. For a small business operating on thin margins, this is an existential threat.
Indoor Heat Illness in Laundry Facilities
California's indoor heat illness prevention standard became effective in 2024, and laundry facilities are among the most heavily impacted workplaces.
Industrial laundry operations generate enormous heat loads. Commercial washers, dryers, ironers, and steam presses all radiate heat into the work environment. During summer months in California's inland valleys — where many commercial laundry operations are located — ambient temperatures combine with process heat to create interior temperatures that regularly exceed 90 and sometimes 100 degrees Fahrenheit.
Cal/OSHA's indoor heat illness standard requires:
**Written heat illness prevention plan.** Every employer with indoor work areas where temperatures reach or exceed 82 degrees Fahrenheit must have a written plan addressing identification of work areas, provision of water, access to cool-down areas, emergency response procedures, and acclimatization procedures for new and returning workers.
**Cool-down areas.** When temperatures reach 82 degrees, employers must provide access to cool-down areas where workers can rest and recover. These areas must be maintained at temperatures that provide meaningful cooling — a break room that is itself 85 degrees does not qualify.
**Water provision.** Fresh, pure, suitably cool water must be available as close as practicable to the work area. Workers must be encouraged to drink frequently. This sounds basic. Cal/OSHA cites laundry operations for this deficiency regularly because the water station is too far from the work area or the water is not suitably cool.
**High heat procedures.** When temperatures reach 95 degrees, additional requirements trigger: mandatory cool-down rest periods, enhanced observation for heat illness symptoms, and pre-shift meetings to discuss heat hazard control.
**Emergency response.** Employers must have procedures for responding to heat illness symptoms, including calling emergency medical services and providing immediate cooling measures. Workers experiencing heat illness must not be left alone.
**Training.** All employees and supervisors must be trained on heat illness recognition, prevention, and emergency response. Supervisors must receive additional training on their responsibilities.
The enforcement trajectory is clear: Cal/OSHA is conducting targeted inspections of laundry and drycleaning facilities during summer months, specifically looking for indoor heat illness compliance. Early enforcement actions have generated serious citations at $18,000 per deficiency, with multiple deficiencies found per inspection.
For laundry operations that already operate on tight margins and rely on high throughput, the operational changes required by indoor heat standards — cool-down rest periods, reduced work pace during high heat — represent both a compliance cost and a production challenge. But the alternative is citations, penalties, and potential criminal liability if a worker suffers serious heat illness or death.
Steam and Press Burn Injuries: The Daily Hazard
Commercial laundry operations use steam at temperatures exceeding 300 degrees Fahrenheit and pressures that can cause immediate, severe burns on contact. Steam presses, flatwork ironers, form finishers, and steam tunnels all present burn hazards that Cal/OSHA enforces under multiple standards.
**Machine guarding on steam presses.** Cal/OSHA requires guarding on steam presses to prevent hand and arm contact with hot surfaces and moving parts. The head of a commercial steam press can crush and burn simultaneously. Two-hand operating controls, pressure-sensitive safety bars, and thermal guards are required protection measures. Operating a steam press with disabled or bypassed safety devices is a willful violation.
**Burns from steam leaks.** Steam system components — pipes, fittings, valves, traps, and hoses — develop leaks through normal wear. A pinhole leak in a steam line can project a jet of superheated steam that causes deep tissue burns before the worker can react. Cal/OSHA requires regular inspection and maintenance of steam systems, with immediate repair of leaks.
**Contact burns from hot surfaces.** Ironer rolls, heated surfaces on form finishers, and the exterior surfaces of steam equipment can cause contact burns. These surfaces must be guarded or insulated to prevent inadvertent contact. The "everyone knows it is hot" defense does not prevent citations.
**Inadequate PPE.** Heat-resistant gloves, arm protection, and face protection are required when workers handle hot materials or work near steam equipment. The gloves must be appropriate for the temperature exposure — standard work gloves are not heat-resistant.
Burn injury citations are classified as serious at $18,000 to $25,000 per instance. When safety devices have been intentionally disabled — which Cal/OSHA sees frequently in laundry operations where safety devices slow production — willful citations at $156,259 apply.
Hazard Communication Failures With Cleaning Solvents
Beyond PERC, laundry and drycleaning operations use a range of chemical products: spotting agents, detergents, bleaches, fabric softeners, sizing agents, and specialty cleaning solvents. Each of these products is covered under Cal/OSHA's Hazard Communication standard (Title 8, Section 5194).
The most common HazCom citations in laundry and drycleaning include:
**Missing or outdated Safety Data Sheets.** Every hazardous chemical in the workplace must have a current SDS readily accessible to employees during their shift. "Readily accessible" means the employee can reach the SDS without asking a supervisor, unlocking a cabinet, or searching through files. Digital SDS systems are acceptable if employees have immediate computer access.
**No written HazCom program.** The standard requires a written program describing how the employer will implement hazard communication, including chemical inventory, SDS management, labeling procedures, and employee training.
**Inadequate labeling.** Secondary containers — spray bottles, buckets, tanks — must be labeled with the chemical identity and appropriate hazard warnings. Transferring a spotting agent into an unlabeled spray bottle is a citation. Using a chemical container for a different chemical without relabeling is a citation.
**Training deficiencies.** Employees must be trained on the hazards of the specific chemicals they work with, how to read and use Safety Data Sheets, the meaning of label elements, and the protective measures required. Generic "chemical safety" training that does not address the specific chemicals in the workplace is inadequate.
HazCom citations are typically classified as serious at $18,000 per instance and are among the most frequently cited standards across all industries.
Machine Guarding on Industrial Laundry Equipment
Industrial laundry equipment is heavy, powerful, and unforgiving. Commercial washers, extractors, ironers, folders, and feeders all have moving parts that can crush, amputate, or entangle.
Cal/OSHA's machine guarding standards require protection at every point of operation where employee contact with moving parts is possible.
**Washer-extractors.** The high-speed spin cycle in commercial extractors generates centrifugal forces that can be lethal if the machine is opened during operation. Interlocked doors that prevent opening during the spin cycle are mandatory safety devices. Operating with bypassed interlocks is a willful violation.
**Flatwork ironers.** Feed points on flatwork ironers present crushing and burn hazards simultaneously. Safety guards, emergency stop cables, and two-hand feed requirements are standard guarding elements. The ironer feed point is one of the most dangerous locations in a commercial laundry.
**Folding machines.** High-speed folding machines have nip points where fabric is pulled through rollers. These nip points can draw in fingers, hands, and arms. Guarding must prevent employee contact with moving parts during normal operation.
**Dryer door interlocks.** Commercial dryers must have interlocked doors that stop the drum rotation when opened. Operating with disabled interlocks creates entanglement hazards.
Machine guarding citations carry serious classification penalties of $18,000 per instance. Willful classification for intentionally disabled safety devices brings penalties up to $156,259.
SCAQMD Air Quality Regulations: The Second Front
California drycleaning operations face a regulatory double-team that is unique in its intensity.
While Cal/OSHA enforces workplace exposure limits, the South Coast Air Quality Management District enforces ambient air quality regulations that are steadily eliminating PERC from the drycleaning industry entirely.
SCAQMD Rule 1421 has progressively tightened requirements for PERC drycleaning machines, moving toward a complete phase-out. The regulation requires:
- Converted machines or alternative solvents for new installations
- Enhanced emission controls on existing machines
- Elimination of transfer machines
- Progressive retirement of older equipment
The interaction between Cal/OSHA and SCAQMD enforcement creates a compliance vise: Cal/OSHA requires exposure controls and monitoring for PERC use, while SCAQMD restricts and ultimately prohibits PERC use entirely. Operators caught between these converging regulatory forces face compliance costs from both directions.
Additionally, the California Department of Toxic Substances Control regulates PERC as a hazardous waste, creating waste disposal and contamination cleanup obligations that can exceed the cost of all other regulatory compliance combined.
The Path Forward
The laundry and drycleaning industry in California is undergoing a fundamental regulatory transformation. PERC is being phased out. Indoor heat standards are being enforced. Machine guarding scrutiny is increasing. HazCom requirements are being audited.
The operators who survive this transformation will be the ones who:
**Transition away from PERC proactively.** Hydrocarbon solvents, liquid CO2 systems, and professional wet cleaning technologies are proven alternatives. The capital cost of conversion is significant but finite. The cost of continued PERC compliance — monitoring, medical surveillance, ventilation, regulatory fees, and penalties — is ongoing and increasing.
**Invest in modern equipment.** Newer machines have better guarding, better interlocks, better emission controls, and better energy efficiency. The equipment investment reduces multiple risk categories simultaneously.
**Build compliant programs now.** Heat illness prevention, HazCom, machine guarding, IIPP — these are not discretionary programs. They are legal requirements with specific, enforceable elements.
**Document obsessively.** The inspector who walks into your facility next month will ask to see your programs, your training records, your monitoring results, and your inspection logs. Have them ready.
The laundry and drycleaning industry has operated for decades with minimal regulatory attention. That era is over. Cal/OSHA, SCAQMD, and DTSC are all watching, and they are all enforcing.
Adapt or face the consequences. In this industry, the consequences come with penalty checks that can close your doors permanently.
