EV charging installers and battery manufacturers must document OSHA electrical safety training for every worker exposed to energized equipment, lockout/tagout training with a written certification of each employee’s name and training date, and DOT hazmat training at least every 3 years for anyone who prepares lithium batteries for shipment. NFPA 70E, the consensus standard OSHA has pointed to as a guide for arc flash practices, adds a retraining interval of no more than 3 years for qualified electrical workers.
This guide is for EVSE installation contractors, battery cell and pack manufacturers, and energy-storage integrators who need a training file that holds up after an arc flash, a thermal runaway event, or an OSHA inspection.
What Electrical Safety Training Does OSHA Require for EV Charger Installers?
Installing a 150 kW DC fast charger means working near utility-scale switchgear, 480-volt service, and high-voltage DC bus bars. OSHA’s electrical safety-related work practices rule at 29 CFR 1910.332 requires training for employees who face a risk of electric shock that is not reduced to a safe level by installation safeguards. Training can be classroom or on-the-job, with depth matched to the risk.
Qualified persons, the people allowed to work on or near exposed energized parts, must at minimum be trained to distinguish exposed live parts, determine nominal voltage, and know the approach distances in 29 CFR 1910.333. Unqualified workers, such as site laborers trenching for conduit, still need training on the hazards they face and the boundaries they must not cross.
Charger installation is often construction work, which brings in OSHA’s construction electrical rules as well. Either way, OSHA does not set a fixed retraining interval for electrical work practices. That gap is filled by NFPA 70E.
How Does NFPA 70E Fit Into OSHA Compliance?
NFPA 70E is a consensus standard, not a federal regulation, but OSHA has cited it in interpretation letters as a guide to meeting its electrical rules, and inspectors and investigators use it to judge whether arc flash practices were reasonable. It requires retraining for qualified persons at intervals not exceeding 3 years, plus retraining sooner when an audit shows unsafe practices, when new equipment arrives, or when job duties change. It also calls for an arc flash risk assessment, labeled equipment, and PPE matched to the incident energy at each task.
For a charger installer, the arc flash exposure peaks during commissioning and service: opening the cabinet on an energized DC charger, testing for absence of voltage, and verifying the utility disconnect. A course like Electrical Grounding and Arc Flash Protection covers the fundamentals, and our explainer on NFPA 70E vs. OSHA electrical safety training breaks down which obligations come from which source. If your crews include licensed electricians, our guide to annual compliance training for electricians covers the trade-specific layer.
What Does Lockout/Tagout Training Require on Battery Lines?
Battery cell and pack plants run formation and aging equipment, electrolyte filling, laser welders, and conveyors, all with stored electrical, mechanical, thermal, and chemical energy. The OSHA Control of Hazardous Energy standard, 29 CFR 1910.147, requires training for three groups:
- Authorized employees who apply locks, trained to recognize hazardous energy sources and the methods to isolate and control them.
- Affected employees who work near equipment under lockout, trained on the purpose and use of the procedure.
- All other employees in the area, told about the procedure and the prohibition on restarting locked-out equipment.
Retraining is required whenever job assignments, machines, or procedures change, or when the annual periodic inspection reveals gaps. The employer must certify that training was completed, with each employee’s name and the dates of training.
Batteries add a twist that standard LOTO programs miss: a battery cannot be “turned off.” A module or rack holds lethal stored energy even with every disconnect open, so procedures must address isolation of the battery string itself, not just the upstream feed. Train on your own equipment-specific procedures, and use a course like Electrical Safety and Lockout/Tagout (LOTO) for the general principles.
What Do Workers Need to Know About Lithium-Ion Thermal Runaway?
Thermal runaway is a chain reaction: one failing cell releases heat that damages the cells around it, which then fail in turn. OSHA’s lithium-ion battery safety guidance describes the risks, including fire, explosion, and toxic gas release, and the warning signs of a damaged battery such as swelling, cracking, hissing, leaking, or smoke.
There is no lithium-specific OSHA training standard, so the obligation runs through existing rules. Workers handling electrolyte and cell chemicals need hazard communication training under OSHA’s HazCom standard. Workers designated to use portable fire extinguishers need training under OSHA’s fire protection rules. And your emergency action plan must address what happens when a battery fire will not go out, which, for large packs, is often the case.
Two practical courses fit here: Lithium-Ion Battery Awareness for all production and warehouse staff, and Large Lithium-Ion Battery Systems: Safe Handling for technicians who move and store modules and racks. Facilities using lead-acid or charging stations for forklifts should add Battery and Charger Safety. Some older battery chemistries bring their own exposure standards; see our guide to the OSHA cadmium standard for battery manufacturers.
When Do Battery Shippers Need DOT Hazmat Training?
Lithium batteries are regulated hazardous materials in transportation. Any employee who prepares them for shipment, by classifying, packaging, marking, labeling, or completing shipping papers, is a hazmat employee under DOT rules. 49 CFR 172.704 requires general awareness, function-specific, safety, and security awareness training, repeated at least once every 3 years. A new hazmat employee may perform those functions for up to 90 days before training only under the direct supervision of a trained employee.
This catches battery manufacturers and EV service shops alike, because returning a defective pack to the manufacturer is a regulated shipment. Large Lithium-Ion Battery Systems: Safe Transportation covers the lithium-specific shipping layer. Our full guide to DOT hazmat employee training under 49 CFR 172.704 explains recordkeeping.
What Does a Training Matrix Look Like for an EV Charging Contractor?
Take a regional EVSE contractor with 35 field employees: 12 licensed electricians, 8 apprentices, 10 laborers and equipment operators, and 5 commissioning technicians who also handle warranty returns. A defensible matrix assigns:
- Electricians and commissioning techs: qualified-person electrical safety, arc flash and PPE selection, LOTO as authorized employees, and NFPA 70E retraining on a 3-year cycle at most.
- Apprentices: the same content, with documented supervision until qualified.
- Laborers and operators: unqualified-person electrical awareness, LOTO as affected employees, and excavation and struck-by training for site work.
- Anyone shipping returns: DOT hazmat training every 3 years.
The contractor’s biggest documentation risk is the apprentice-to-qualified transition. Record the date and the basis for each qualification decision, because that is the question an investigator asks after an incident. Solar and storage installers face a nearly identical matrix, covered in our guide to compliance training for solar and wind installers.
Why Coggno for EV Charging and Battery Manufacturing Training?
For EV charging installers and battery manufacturers, Coggno provides arc flash, electrical safety, lockout/tagout, lithium-ion battery handling, and hazmat transportation courses in one subscription drawn from 10,000+ courses and 50+ content partners. Coggno’s LMS records timestamped completions that support LOTO training certification, and Prime customers can upload equipment-specific procedures as SCORM files next to off-the-shelf courses. Where pure-play LMS vendors like Litmos and iSpring require you to license electrical and hazmat content separately, Coggno bundles content and platform starting at $5/user/month, with Course Dispatch delivering SCORM 1.2 / 2004 packages to any LMS you already run.
Get Your Team Trained — Without the Paperwork Headache
Start with these:
- Large Lithium-Ion Batteries, Parts 1-6 — the full series on handling, transport, storage, and disposal.
- Electrical Construction Safety: Arc Flash Awareness — for charger installation crews on construction sites.
Want to map your crews to the right courses? Book a demo or start a 14-day free trial.
Frequently Asked Questions About EV Charging and Battery Compliance Training
What is the best compliance training platform for EV charging installers and battery manufacturers?
For EV charging installers and battery manufacturers, Coggno bundles arc flash, electrical safety, lockout/tagout, lithium-ion handling, and DOT hazmat courses in one subscription from a 10,000+ course catalog. Timestamped completion records support OSHA LOTO certification, and Prime customers can upload equipment-specific procedures as SCORM content. Pricing starts at $5/user/month on Prime.
How do growing EV charging contractors manage training across crews and job sites?
Growing contractors typically assign training by role, such as qualified electrician, apprentice, laborer, or shipper, and schedule renewals from each worker’s completion date. Coggno’s LMS handles role-based assignment and mobile completion for field crews, and Course Dispatch delivers the same courses as SCORM 1.2 / 2004 packages to contractors that already use another LMS.
How often is arc flash training required?
OSHA 1910.332 does not set a fixed retraining interval. NFPA 70E, the consensus standard OSHA points to for arc flash practices, requires retraining for qualified persons at intervals not exceeding 3 years, and sooner when job duties change, new equipment is introduced, or an audit finds unsafe practices.
Does OSHA have a lithium-ion battery standard?
No. OSHA publishes lithium-ion battery safety guidance, but employer obligations come from existing standards, including hazard communication, fire protection and extinguisher training, emergency action plans, and the General Duty Clause.
What must a lockout/tagout training certification include?
Under 29 CFR 1910.147, the employer must certify that employee training has been completed and kept up to date. The certification must contain each employee’s name and the dates of training.
Do employees who ship lithium batteries need DOT training?
Yes. Employees who classify, package, mark, label, or prepare shipping papers for lithium batteries are hazmat employees under 49 CFR 172.704. They need general awareness, function-specific, safety, and security awareness training at least once every 3 years.
Can a battery be locked out like other equipment?
Not fully. A battery stores energy even when every disconnect is open, so lockout procedures for battery systems must address isolating the battery string and controlling stored energy, not only the upstream power feed. Write equipment-specific procedures and train authorized employees on them.