There’s no single rulebook for a Class 4 industrial laser in the US. You deal with three layers instead: FDA rules for the machine itself, workplace safety rules for the people who run it, and, in some states, a separate laser registration.
Seven states have a registration program that clearly covers industrial lasers: Arizona, Florida, Georgia, Illinois, Massachusetts, New York, and Texas. In the other states, the official sources we reviewed showed no such program. That doesn’t prove no rule applies, and a few states deserve a phone call before you assume anything. Either way, registering a laser doesn’t make a workplace safe. That comes from what you do inside your own building.
This guide covers industrial welding, cleaning, and cutting with Class 4 lasers, including handheld fiber welders, pulsed cleaners, enclosed cutters, and demonstration, repair, and mobile trailer work. It’s written for private employers. After the general rules, the guide takes laser cutters, laser welders, and laser cleaners in turn. Medical laser licensing and entertainment laser variances follow different rules and aren’t industrial operating licenses.
Last reviewed in October 2026. State rules change, so confirm anything that affects you with the agency before you act.
Who regulates what
Five groups have a say over a Class 4 laser. They rarely overlap, so it helps to know which one you’re dealing with.
| Group | What it covers | What it means for you |
|---|---|---|
| FDA (Center for Devices and Radiological Health) | The machine: design, performance, labeling, manufacturer reporting, and imports. Start with 21 CFR 1040.10 and the related reporting and certification rules. | Mostly the manufacturer’s job. If you import, integrate, or relabel equipment, check your own duties. |
| Federal OSHA, or your state’s OSHA plan | Hazards to employees at work. | Standards on PPE, respirators, hazardous energy, chemicals, machines, and electrical work are enforceable. The General Duty Clause covers recognized serious laser hazards. |
| State radiation control agency | Laser registration, safety programs, officers, training, inspections, and temporary-use notices in states with laser rules. | A registration from your home state isn’t a national permit. |
| ANSI and the Laser Institute of America | Consensus standards, including ANSI Z136.1 and Z136.9 (manufacturing environments). | Not federal law on their own. A state rule can adopt a specific edition, and then it applies. |
| Local fire and building officials | Occupancy, fire prevention, compressed gas, ventilation, and installation. | Ask before you build a permanent booth or set up a mobile rig. |
What OSHA actually enforces
Federal OSHA has no laser standard for general industry. What it has is guidance: a laser chapter in its Technical Manual and a 1991 laser directive that’s now archived. Both explain hazards and possible controls. Neither one creates every duty it describes.
Inspectors enforce the standards that fit your hazards, plus the General Duty Clause. A General Duty citation needs a recognized serious hazard and a feasible way to correct it, so missing one ANSI recommendation isn’t enough on its own. These are the rules that come up most with industrial lasers:
| Rule | When it applies | What it asks |
|---|---|---|
| General Duty Clause (OSH Act section 5(a)(1)) | A recognized serious hazard that no more specific standard covers | Keep the workplace free of recognized hazards likely to cause death or serious harm. Laser engineering controls and accepted practice can help show a hazard was recognized and fixable. |
| 29 CFR 1910.132(d) and (f) | Eye, face, skin, and other PPE hazards | Assess the workplace and certify it in writing, with the site, the assessor, and the date. Choose PPE that fits, train workers, and have them show they understand before they use it. |
| 29 CFR 1910.133 | Eye and face hazards, including harmful light | Provide the right protection. Cover impact and process hazards as well as laser wavelength. |
| 29 CFR 1910.134 | Respirators the work needs or the employer requires | Engineering controls first. Then a written program, medical evaluation, training, and fit testing for tight-fitting types. |
| 29 CFR 1910.1000 and the substance-specific standards | Fumes, dust, and gases from the base metal or coatings | Keep exposure under the limits. Check the specific standard, such as lead or hexavalent chromium, when those materials are present. |
| 29 CFR 1910.1200 | Hazardous chemicals | A hazard communication program: labels, safety data sheets, and training. |
| 29 CFR 1910.147 | Service work with unexpected startup or stored energy | An energy control program: isolate, verify, and train. An emergency stop isn’t energy isolation. |
| 29 CFR 1910.212 and Subpart S | Machine and electrical hazards | Guard mechanical hazards and meet the electrical requirements. Evaluate laser exposure separately. |
| 29 CFR 1910.157 | Portable fire extinguishers | Choose extinguishers for the classes of fire you expect and place them within the set travel distances, 75 feet for combustible metals. Train the employees who may use them. |
| 29 CFR 1926.54 | Construction work only | Qualified installers and operators with proof of qualification, warning signs, no beams aimed at employees, and suitable protection. It isn’t the general industry rule. |
Everything beyond this list is technical guidance unless a state rule or a registration condition makes it mandatory. The older OSHA documents also contain legacy references, so don’t copy their exposure tables or sign designs without checking current requirements.
Start with a laser safety officer
Every laser program needs one person who answers for it. The laser safety officer (LSO) classifies the equipment, assesses the hazard, picks the controls, writes the procedures, signs off on training, and approves changes, and needs the authority to stop unsafe work. Some states require one outright.
The employer still owns the legal responsibility. Naming an LSO doesn’t pass those duties to an employee or make an unsafe installation acceptable. Put the appointment in writing: which machines, sites, mobile jobs, and service work it covers, who the LSO reports to, and who the trained alternate is. An LSO should also know their limits and call in a laser safety specialist, an industrial hygienist, or a controls engineer for anything beyond their competence. No LSO can waive a state requirement.
Federal OSHA doesn’t set an LSO course length, license LSOs, or require a fixed refresher period, though states can set qualifications and training. A professional certification shows knowledge but doesn’t prove someone can handle every machine, so look for experience with your wavelengths, pulse modes, and tasks. Good LSO training covers hazard analysis and program management, not only how to make a weld or run a cleaner. Operator training and LSO qualification are separate, and so are their records.
Controlling the beam
These practices come from OSHA’s laser guidance. Use the laser maker’s design information and the ANSI edition your state names, if it names one.
Calculate the hazard instead of picking a distance
The maximum permissible exposure (MPE) is the limit used to judge eye and skin hazards. It’s set at one-tenth of the exposure that has a 50 percent chance of causing injury, and it changes with wavelength and exposure time. The nominal hazard zone (NHZ) is where direct, reflected, or scattered radiation could exceed it, and the nominal ocular hazard distance is how far along a beam the eye hazard extends under defined conditions. None of them is a universal safe radius. A qualified assessment looks at wavelength, continuous or pulsed output, pulse duration and repetition rate, beam size and divergence, exposure time, optics, scanning, and foreseeable reflections.
Contain the beam path and control the area
Choose a validated enclosure or contained beam path when you can. With an open handheld welder or cleaner, think through every plausible aiming direction, target, and reflected path. Curved rollers, polished metal, and edges can redirect the beam, and diffuse reflections from a Class 4 laser can be hazardous too. Use suitable beam stops, and keep radiation from leaving through windows, doors, roof openings, or ventilation penetrations.
If hazardous emission can still be reached, the controlled area has to contain the whole assessed hazard zone, with entry limited to trained, authorized people, visitors and other trades included. A floor line, a cone, or a warning light doesn’t contain a beam. Post a warning at every way in that names the hazard and the protection required before anyone enters. The label below leaves blanks for the laser’s wavelength, power, pulse energy, and pulse duration, and for the eyewear wavelength and OD. Minimum OD 5; prefer OD 7 or 8.
How you apply these controls depends on the machine. The next three sections take laser cutters, laser welders, and laser cleaners in turn.
Laser cutters
An enclosed cutter keeps its beam inside the machine, so the main safeguard is the cover around it.
The solution: a cover for the laser cutter
A complete enclosed cutter can be Class 1 in normal use while it holds a Class 4 laser. What sets the class is the radiation a person can reach and the design that contains it. Open the enclosure for service and Class 4 hazards can be within reach again, and a cover or a line in a brochure doesn’t make the machine safe.
So the cover has to stay whole and stay interlocked. The annotated picture below calls out what to look for on a cutter: interlocked access, viewing panels, an enclosed beam catchment, guarded travel ends, and a brush-and-rubber lower seal. Check seams, door gaps, windows, and fire resistance, and make sure the cover holds long enough for the system to shut the beam off.
The viewing panels need documented protection for your actual wavelength, irradiance, exposure time, and a foreseeable beam strike. A panel that only looks tinted proves nothing, and the callout on the picture says it plainly: rating to verify. Service is the weak point, because opening the cover can bring the Class 4 beam back within reach, so apply the entry-control and lockout rules described under laser welders before anyone opens it.
Fire is the other risk to plan for. Keep a CO₂ extinguisher within reach of the cutter, as described under fire and other hazards.
Laser welders
An open-beam handheld welder or cleaner is a different case. The beam isn’t contained by design, so most of the protection comes from the room, the procedures, and the people. Target-contact sensing on the torch helps, but it doesn’t prove containment, and it doesn’t replace eye protection.
The solution: personal protective gear (PPE)
For laser welders, the solution is personal protective gear backed by the controls that keep people out of the beam’s reach. It has four parts: entry controls and emergency stops, barriers and viewing windows, protection for the people in the room, and fume extraction and respirators.
Fire protection belongs with the gear: a CO₂ extinguisher for the machine, and a Class D extinguisher if you weld reactive metals, as described under fire and other hazards.
Entry controls and emergency stops
OSHA’s guidance describes nondefeatable interlocked entry, controlled defeatable entry, and procedural entry with suitable barriers and warnings. The right one depends on your design and the rules that apply. Whichever you pick, keep a fast way out, put an emergency shutoff within reach, test door and panel interlocks, and control restarts. Opening a protected door should put the laser in its safe state before anyone can reach the hazard, and a reset shouldn’t start emission. A warning light must show the real state of the laser, not just that power is on. One unvalidated door magnet isn’t a safety system, and nobody should bypass interlocks to keep production moving.
Barriers and viewing windows
Get documented protection for your actual wavelength, irradiance, exposure time, and a foreseeable beam strike, and check seams, door gaps, windows, and fire resistance. The barrier has to hold long enough for the system to shut the beam off. Ordinary welding curtains don’t make a rated laser barrier on their own, and no sheet thickness, paint, or window tint proves suitability. A room without a ceiling needs its own look at upward emission, because wall height alone doesn’t show containment.
Protecting the people in the room
The LSO picks eyewear from the exposure analysis. Start with the laser’s wavelengths and its output: continuous power, or pulse energy, duration, and repetition rate. Work out the exposure limit and the longest exposure that’s realistic, then calculate the optical density (OD) that brings the beam down to a safe level. Minimum OD 5; prefer OD 7 or 8. Your LSO confirms the final rating for your machine and task, and the laser maker’s specification comes first if it calls for more. Then check these things on the glasses themselves:
| Check | What to look for |
|---|---|
| Optical density (OD) | OD is the base-10 logarithm of the light going in divided by the light that comes through, at one wavelength. Each step up lets through ten times less: OD 5 passes 1/100,000, OD 7 passes 1/10,000,000, and OD 8 passes 1/100,000,000, so it blocks 99.999999 percent. No filter blocks everything, so the number tells you how much gets through. Minimum OD 5; prefer OD 7 or 8. |
| Wavelength range | Each rating is tied to a stated range in nanometers, for example OD 5+ across 830 to 980 nm and OD 7+ across 1000 to 1095 nm, and it doesn’t hold outside that range. Your laser’s wavelength has to sit inside it. Two lasers with the same name can run at different wavelengths, so check the actual figure. A fiber laser near 1070 nm needs glasses whose stated range includes 1070 nm. Go by the guaranteed rating, not a sample graph. Minimum OD 5; prefer OD 7 or 8, measured at your laser’s wavelength. |
| Lens material | Hardened, scratch-resistant polycarbonate, or absorptive glass with the laser-protective dye built in, so a surface scratch doesn’t compromise the protection. Reinforced or laminated glass lenses are built for a higher damage threshold. |
| Damage threshold | The laser power at which the lens and frame start to be damaged by a direct beam. Ask the maker for it and compare it with your laser’s power. Stop using glasses that are damaged or have taken a high-energy hit. |
| Visible light transmission (VLT) | Depends on the dye, from low (23 percent, for example) to clear lenses well above 60 percent. It affects how bright the work looks and how comfortable the glasses are to use. |
| Fit and coverage | Side and top coverage and a snug fit. Some goggles go over prescription glasses and some large frames won’t fit under them, and some makers offer inner frames made to your prescription. |
| Markings and standards | The wavelength range, the protection rating, and the VLT should be printed on the glasses. ANSI Z136.1 is the US standard for the safe use of lasers, and EN 207 and EN 208 were the European standards for laser eye-protection filters and equipment, now replaced by ISO 19818. California’s workplace rule (Title 8, section 3382) requires laser goggles to be marked with the wavelengths, the protection rating at those wavelengths, and the visible light transmission. |
Laser glasses aren’t welding eyewear. They don’t cover the light from the weld itself, so protect against that separately, and a welding shade or a dark lens doesn’t show laser protection at 1064 or 1070 nm. A CO₂ laser, which works near 10.6 micrometers, needs a separate assessment. Alignment glasses that pass some visible light, rated about OD 1 to 4, only suit low-power setup work. They fall short of the standard here, minimum OD 5; prefer OD 7 or 8, so they don’t belong at a production welder or cleaner. Keep the glasses on for the whole job, never look into the beam through them, and never aim a beam at them.
A laser face shield or helmet needs laser filtering for every viewing area and has to work with your eyewear.
Gloves, sleeves, and aprons protect against heat, sparks, sharp edges, and chemicals. Clothing never gives anyone permission to intercept a beam, and it counts as laser protection only if its wavelength and exposure ratings are documented.
Fume extraction and respirators
Cleaning, welding, and cutting can put hazardous particles and gases in the air, from the base metal and from coatings. Old paint or adhesive can release particles and decomposition gases even when it was water-based, so find out what’s on the part before you start: read the SDS, and look for lead, chromium, beryllium, or anything else that could be there. Capture fumes with local exhaust close to the beam, and test the capture under real working conditions. A HEPA stage stops particles, not gases or vapors.
If respirators are required, OSHA’s respirator standard, 1910.134, applies in full: a written program, medical evaluation, training, and fit testing for tight-fitting types. A P100 filter captures at least 99.97 percent of test particles in the lab, but that’s the filter’s efficiency, not the protection the worn respirator gives. A welding PAPR helmet isn’t automatically laser rated, and an air-purifying respirator is the wrong tool for oxygen-deficient or immediately dangerous conditions. A respirator is the last layer. OSHA expects feasible engineering controls first, and a filtered helmet does nothing for the people nearby.
Laser cleaners
A laser cleaner combines an open, often handheld, beam with a material nobody has tested: whatever is on the part. The controls described for laser welders, meaning entry controls, barriers, eyewear, fume extraction, and respirators, apply to open-beam cleaners too. The points below are the ones that are different.
Know what’s on the part
Laser cleaning removes whatever is on the surface, so the coating matters as much as the beam. Old paint or adhesive can release particles and decomposition gases even when it was water-based, and lead paint, chromium-containing alloys, and other contaminants can trigger substance-specific rules such as OSHA’s lead standard. Read the SDS and the process information before you start, and for coated steel rollers, get the material identity and exposure evidence before you choose filters. If the part is a reactive metal such as magnesium or titanium, you also need a Class D extinguisher within reach, as described under fire and other hazards.
Capture the fumes and protect the lungs
Don’t tell a customer that laser cleaning eliminates hazardous dust unless you have exposure data to back it up. Capture fumes with local exhaust close to the point where the beam hits the work, test the capture under representative working conditions, and remember that a HEPA stage stops particles, not gases or vapors. Pick respiratory protection from the measured or expected exposure, and follow the respirator rules described under laser welders.
Pulsed output and eyewear
Many cleaners are pulsed and use a scan head, so average power doesn’t describe what a pulse can do. Record the pulse energy and duration, the repetition rate, the peak and average power, the beam size, and how the scan head behaves, and design for scan failure and incorrect aiming. A 1000 W average output alone can’t settle eyewear or barrier choices. Minimum OD 5; prefer OD 7 or 8, and the LSO confirms the final rating from the actual pulse conditions, using pulse performance and damage-limit data from the glasses’ maker.
Mobile cleaning
Many cleaners work from a trailer at customer sites. A trailer isn’t automatically a safe enclosure, and a customer’s registration may not cover you, so read the section on taking a laser to another site or state before you roll. Before each job, confirm the target and its coating, the beam orientation, public access, nearby work, penetrations, and exits. An LSO can limit an appointment, for example by approving routine contained cleaning only and requiring specialist review for new pulse conditions or outdoor beam paths.
Fire and other hazards
Look at combustible targets, sparks, collected dust, flammable chemicals, and shielding gases, and make sure the extraction equipment suits the material. Then add electric shock, stored capacitor energy, compressed gas and oxygen displacement, and moving equipment, and apply the fire, electrical, chemical, and machine standards alongside your laser controls.
Fire extinguishers
A carbon dioxide (CO₂) extinguisher is the main choice for the electronics and optics on CO₂ and fiber laser cutters, welders, and cleaners. If you weld or clean combustible reactive metals, you also need a Class D extinguisher.
| Extinguisher | Best for | Why | Size and placement |
|---|---|---|---|
| Carbon dioxide (CO₂) | Direct use on the laser machine. | It displaces oxygen and cools the fire without leaving residue, so sensitive electronics, mirrors, and lenses aren’t exposed to corrosive chemicals. | At least 5 kg (11 lb) within 10 m (33 ft) of an industrial laser cutter is commonly recommended. Units of 2 to 5 kg (4.4 to 11 lb) work for desktop or hobbyist setups. |
| Class D (dry powder) | Laser welders and cleaners working with reactive metals. | Laser welding and cleaning of metals like aluminum, titanium, or magnesium can produce combustible metal dust and chips. CO₂, standard ABC, and water extinguishers can react dangerously with burning metals, so a Class D dry powder extinguisher has to be immediately available for a metal fire. | OSHA requires the Class D agent to be within 75 feet (22.9 m) of travel distance from the combustible metal working area. |
CO₂ displaces oxygen, so in a small closed space such as a booth or a trailer, leave and ventilate after you discharge one. OSHA’s portable extinguisher standard, 29 CFR 1910.157, sets selection and travel-distance rules where you provide extinguishers for employees to use, and NFPA 10 calls for Class D extinguishers wherever combustible metal powders, flakes, shavings, or chips are generated. Treat the CO₂ size and distance as a common recommendation, and check them with your local fire authority. Inspect the extinguishers on a schedule, and show everyone who works near the machine where they are and how to use them.
Procedures, training, and incidents
Write procedures for the specific machine and task: start-up, shutdown, permitted settings, target preparation, entry control, extraction, eyewear, fault response, and emergencies. Spell out who may align, repair, or open the beam path, and use reduced power for alignment where practical.
Operators need laser hazard knowledge and proven, machine-specific skill. Service staff, other employees, and visitors need training on the hazards and controls that affect them. Keep attendance and competency records. Federal general industry rules don’t set a universal number of training hours or a refresher interval, but states can: Illinois requires initial and annual in-service training for laser users, and Arizona specifies training subjects and competency for operators and LSOs.
Check interlocks, emergency stops, barriers, windows, signs, eyewear, and extraction on a documented schedule, and reassess after any change to the machine, power, optics, target, layout, or enclosure. Annual audits are good practice. Specific intervals come from the applicable rule or your registration conditions.
If someone may have been exposed, stop the emission, isolate the hazard, and get prompt medical evaluation for a suspected eye injury, even if the symptoms seem slight. Under 29 CFR 1904.39, OSHA generally requires reporting a work-related fatality within 8 hours and an inpatient hospitalization, amputation, or loss of an eye within 24 hours. State laser agencies can require separate reports.
State registration: seven states with a program
These states have rules that expressly cover industrial lasers, or laser installations broadly enough to include them. Before the laser emits, confirm the classification, exemptions, fees, and authorization that apply to your facility and your activity. The deadlines below aren’t permission to operate without an approval the rule requires.
| State | Agency and rule | What it asks | Out-of-state or temporary use |
|---|---|---|---|
| Arizona | Department of Health Services, Bureau of Radiation Control (Arizona Administrative Code Title 9, Chapter 7, Article 14) | Apply within 30 days, and don’t operate an unregistered laser. Requires an LSO, competent operators, a safety program, and controlled areas where specified. Installers and service personnel are addressed separately. | Ask the department which category covers mobile and temporary use. Older guidance predates the 2026 revision. |
| Florida | Department of Health, Bureau of Radiation Control (Rule 64E-4.001; DH Form 1605) | Register within 30 days of acquiring a nonexempt laser, with one registration per location. Name an LSO. The form has a box for mobile lasers. There’s no fee. | Written notice at least 20 days before using an out-of-state laser in Florida. |
| Georgia | Department of Community Health (Rule 111-8-91) | Register within 30 days of acquisition. Report injuries within 15 days of detection, and notify the department within 30 days if you permanently stop operating. | A laser that can’t be energized, or is in transit, doesn’t need to be registered. |
| Illinois | IEMA Office of Homeland Security (32 Ill. Adm. Code Part 315, covering Class 3B and Class 4) | Register the installation. Appoint a qualified LSO, write operating and emergency procedures, and give laser users initial and annual in-service safety training. | Register and give written notice at least 10 working days before temporary use, covering the nature, duration, scope, and exact locations. A pre-operation inspection may be required. |
| Massachusetts | Department of Public Health, Radiation Control Program (105 CMR 121.000) | Registers Class 3B and Class 4 lasers, including industrial use. Covers possession, use, transfer, operation, maintenance, repair, and service. | Written notice at least 10 working days before bringing a laser in for temporary use, plus registration and any fee. |
| New York | Department of Labor, not the health department (Industrial Code Rule 50; Form SH 280) | Covers laser installations and mobile lasers, subject to the rule’s definitions and exemptions. Mobile operation also brings in the operator certificate-of-competence provisions. | For a handheld or trailer setup, ask the Department of Labor for a determination rather than assuming a Class 4 label matches the rule’s older terms. |
| Texas | Department of State Health Services (25 TAC 289.301) | Covers Class 3B and Class 4 industrial lasers and laser service businesses. Categories include use, alignment, calibration, installation, repair, demonstration, and sale. Sets LSO and safety duties and requires service logs. | Use and services need a certificate. Don’t treat the 30-day filing provision as a grace period, and don’t assume another state’s registration carries over. |
When you contact an agency, have these ready: the wavelength, Class 4 classification, power or pulse data, the process, whether the machine is fixed or mobile, locations and dates, and whether you’ll demonstrate, sell, install, or repair equipment. Ask for the registration, notice, and safety program requirements in writing.
Other states to watch
| State | What to know |
|---|---|
| Alaska | Laser rules sit in 18 AAC 85.670 through 85.730. The state proposed repealing them in August 2026, and comments closed September 11, 2026. A proposed repeal isn’t a repeal, so get the final status from the agency. Workplace safety rules apply either way. |
| California | Cal/OSHA sets marking requirements for laser goggles (Title 8, section 3382, covered in the eyewear section above). We couldn’t confirm a state registration requirement for industrial lasers on the state’s own pages, though some published guidance says one exists. Ask the Radiologic Health Branch. |
| Kentucky and Wisconsin | The radiation programs we found cover X-ray equipment. Some guidance mentions a notice for Class 4 lasers in Kentucky and a courtesy notice in Wisconsin, but we couldn’t confirm either from the state pages. Ask the agency. |
| Michigan | MIOSHA publishes an industrial laser compliance guide and a sample safety program. Its recommendations aren’t regulations. |
| North Carolina | The labor department publishes laser safety guidance and strongly recommends naming an LSO for Class 3B and Class 4 lasers. |
| Oregon | Oregon OSHA says it expects an LSO when workers use or are exposed to Class 3B or Class 4 lasers. |
Michigan, North Carolina, and Oregon didn’t turn up a separate device registration, but their workplace safety programs still apply.
Taking a laser to another site or state
A trailer isn’t automatically a safe enclosure. Check openings, windows, floor and ceiling penetrations, reflected beam paths, extraction, and the emergency exit, and plan for keeping people out of the area around the trailer if emission can escape. A machine used outside the trailer needs its own controlled area.
Ownership, operation, and service can be three different questions. A customer’s registration may not cover you to demonstrate, align, or repair their laser. Texas registers laser services as a separate category and Arizona addresses installers and service personnel, so get the category that fits what you do.
Crossing a state line can start a clock. Florida wants written notice at least 20 days before you use an out-of-state laser there, and Illinois and Massachusetts each ask for at least 10 working days. Start early, and ask the agency for its answer in writing if the scope isn’t clear.
Before each mobile job, confirm the target and its coating, beam orientation, public access, nearby work, penetrations, and exits. Set up containment before the laser emits, and reassess when you move or change the target.
FDA paperwork and the accession number
When the FDA’s Center for Devices and Radiological Health receives a laser product report, it assigns an accession number. The number means the report was received and logged. It isn’t an FDA approval, a serial number, or an operating permit, and it says nothing about workplace safety. FDA doesn’t approve these reports or the products. The manufacturer certifies compliance and stays responsible for it.
The report also has to match the machine. A fiber source’s accession number doesn’t automatically cover a finished handheld welder, cleaner, or CNC cutter built around it. The report needs to cover the complete product, including its housing, controls, and exact model. One reported family can cover several models when it’s documented properly, but FDA doesn’t issue an accession number per serial-numbered unit.
FDA defines a manufacturer to include anyone who makes, assembles, or imports electronic products. If you import equipment, integrate it into something else, or change a certified product, you can pick up obligations beyond reselling an unchanged domestic machine.
| Document | What it shows | What to check |
|---|---|---|
| Laser product report (FDA Form 3632 is the guide) | The product or family, its safety design, testing, controls, labels, and instructions. A supplemental report updates it when models or designs change. | That it covers the complete machine and exact model, including housing, interlocks, and labels. |
| CDRH acknowledgment letter | That the report was received, with the accession number. | The actual letter, not just a number in an email or brochure. |
| Annual report (FDA Form 3636 is the guide) | Periodic radiation safety reporting by covered manufacturers. | Coverage of the model family. Due September 1 for the 12 months ending June 30. |
| Certification and identification labels | The manufacturer’s statement of compliance, plus product identification. | Manufacturer, model, serial or identifying information, manufacture date, and laser warning labels. A label isn’t FDA approval. |
| Import declaration (FDA Form 2877) | The declaration for an imported electronic product at entry. | That the model and declaration match the shipment documents. |
Before you buy a laser from anyone, ask for the acknowledgment letter for the exact model, the labels, and the manuals, and keep copies. If an ad says a machine is “FDA approved,” ask what paperwork sits behind it. When the documents back it up, the accurate wording is “CDRH has assigned an accession number to the radiation safety report covering this documented model.” Don’t call it FDA approved or FDA certified.
Where to start
- Write down what you have: model, serial number, wavelength, power or pulse data, and whether you’ll use it fixed or mobile.
- Get the manufacturer’s paperwork: the FDA acknowledgment letter for the exact model, the labels, and the manuals.
- Ask your state radiation agency whether registration, notices, or a safety program apply. Put the question in writing if the scope is unclear.
- Appoint and document a laser safety officer.
- Run the hazard assessment and sign the written PPE certification OSHA expects.
- Build the controls and test them: enclosure or controlled area, barriers and windows, interlocks, emergency stops, and extraction.
- Put extinguishers in place: CO₂ within reach of the machine, and Class D if you work with reactive metals.
- Write procedures, train everyone the laser affects, and set an inspection schedule.
Keep the records together in one binder, physical or digital: the device inventory, FDA and manufacturer documents, state certificates and notices, the LSO’s appointment, the PPE assessment, the hazard analysis, containment specifications, interlock and extraction checks, procedures, training records, and the inspection schedule. Some states add forms or retention periods.
All 50 states at a glance
This table summarizes a review of each state’s official radiation program pages in October 2026. “Yes” means we found a registration program that covers industrial lasers. “Not found” means we didn’t find one, which isn’t the same as no law, so confirm the laser scope with the agency, especially where a note says the program covers X-ray equipment. “Unclear” means published guidance conflicts or the official pages don’t settle it. “State plan” means the state agency, not federal OSHA, enforces workplace safety for private employers.
| State | Workplace safety | Laser registration | Note |
|---|---|---|---|
| Alabama | Federal OSHA | Not found | Covers X-ray devices. |
| Alaska | State plan | Rules, repeal proposed | Laser rules in 18 AAC 85. Check the final status. |
| Arizona | State plan | Yes | Health Services, Article 14. Details above. |
| Arkansas | Federal OSHA | Not found | Covers X-ray devices. |
| California | State plan | Unclear | Cal/OSHA goggle marking rules. Ask the Radiologic Health Branch about registration. |
| Colorado | Federal OSHA | Not found | Scope needs confirmation from the agency. |
| Connecticut | Federal OSHA | Not found | Covers X-ray devices. |
| Delaware | Federal OSHA | Not found | Covers X-ray devices. |
| Florida | Federal OSHA | Yes | Rule 64E-4.001. 30 days. Advance notice for out-of-state lasers. |
| Georgia | Federal OSHA | Yes | Rule 111-8-91. Registration and injury reporting. |
| Hawaii | State plan | Not found | Covers ionizing devices. |
| Idaho | Federal OSHA | Not found | Covers X-ray devices. |
| Illinois | Federal OSHA | Yes | Part 315. LSO, annual training, temporary-use notice. |
| Indiana | State plan | Not found | Covers X-ray devices. |
| Iowa | State plan | Not found | Covers X-ray devices. |
| Kansas | Federal OSHA | Not found | Covers X-ray devices. |
| Kentucky | State plan | Unclear | Rule 902 KAR 100:110 covers X-ray. Ask the Radiation Health Branch about lasers. |
| Louisiana | Federal OSHA | Not found | Broad radiation authority. Confirm laser scope. |
| Maine | Federal OSHA | Not found | Covers X-ray devices. |
| Maryland | State plan | Not found | Covers X-ray devices. |
| Massachusetts | Federal OSHA | Yes | 105 CMR 121. Temporary-use notice. |
| Michigan | State plan | Not found | Laser guide and sample program (guidance only). |
| Minnesota | State plan | Not found | Covers X-ray devices. |
| Mississippi | Federal OSHA | Not found | Covers X-ray devices. |
| Missouri | Federal OSHA | Not found | Machine registration program. Confirm it covers lasers. |
| Montana | Federal OSHA | Not found | Machine registration program. Confirm laser scope. |
| Nebraska | Federal OSHA | Not found | Broad radiation authority. Confirm laser scope. |
| Nevada | State plan | Not found | Covers X-ray devices. |
| New Hampshire | Federal OSHA | Not found | Radiation machine and MRI rules. Confirm laser scope. |
| New Jersey | Federal OSHA | Not found | Covers X-ray devices. |
| New Mexico | State plan | Not found | Covers X-ray devices. |
| New York | Federal OSHA | Yes | Rule 50 (Department of Labor). Fixed and mobile lasers. |
| North Carolina | State plan | Not found | Labor department laser safety guidance. |
| North Dakota | Federal OSHA | Not found | Covers X-ray devices. |
| Ohio | Federal OSHA | Not found | Public-employee nonionizing rules differ from private-sector coverage. |
| Oklahoma | Federal OSHA | Not found | Covers X-ray devices. |
| Oregon | State plan | Not found | Oregon OSHA expects an LSO for Class 3B or Class 4 exposure. |
| Pennsylvania | Federal OSHA | Not found | Covers X-ray devices. |
| Rhode Island | Federal OSHA | Not found | Covers X-ray devices. |
| South Carolina | State plan | Not found | Covers X-ray devices. |
| South Dakota | Federal OSHA | Not found | Covers X-ray devices. |
| Tennessee | State plan | Not found | Covers X-ray devices. |
| Texas | Federal OSHA | Yes | 25 TAC 289.301. Industrial use and laser services. |
| Utah | State plan | Not found | Covers X-ray devices. |
| Vermont | State plan | Not found | Registration page covers X-rays. |
| Virginia | State plan | Not found | Check radiation definitions before applying machine registration. |
| Washington | State plan | Not found | Covers X-ray devices. |
| West Virginia | Federal OSHA | Not found | Broad statutory authority alone doesn’t establish laser registration. |
| Wisconsin | Federal OSHA | Unclear | Covers X-ray. Ask DHS whether a laser notice applies. |
| Wyoming | State plan | Not found | Verify directly. Wyoming OSHA covers private workplaces. |
Questions about the rules that apply to your own setup? Contact us. Installation and training are included with every Ascent machine, and we’re glad to talk it through before you buy.
This guide is general information, not legal advice. It reflects the rules as we reviewed them in October 2026. Agencies change forms, deadlines, and requirements, and a deadline listed here is not permission to operate without a required approval.
