Lithium Battery Storage Laws — U.S. Overview
There is no single nationwide rule requiring every commercial lithium battery to be stored in the same type of cabinet or room. Storage requirements depend on the batteries, quantity, condition, activity, building and the codes adopted in the local jurisdiction.
“What are the storage laws?” is really several questions.
Lithium battery storage can be affected by adopted fire and building codes, workplace-safety requirements, technical standards, local amendments, the battery condition and the way the storage area is being used.
A national model code can therefore provide an important framework without necessarily being the exact enforceable requirement at a particular facility.
A cabinet cannot make an unknown site requirement disappear. First establish what is being stored, how much is present, the condition of the batteries and which code edition the local authority applies.
States and local jurisdictions adopt different code editions and can make amendments. The Authority Having Jurisdiction should be used to resolve site-specific code and approval questions.
A model code, a standard and an adopted requirement are not the same thing.
The International Fire Code is widely used across the United States, but it is a model code. It becomes enforceable through adoption by the relevant governmental jurisdiction, often with local amendments.
Technical standards such as NFPA documents can also become important where they are adopted, incorporated by reference, required by an authority or used as the accepted basis for a design.
Provides model fire-safety requirements that jurisdictions can adopt and amend.
Determines which edition and amendments have legal effect locally.
Applies and interprets requirements for the particular site.
ICC describes the IFC as a model code intended to be adopted under governmental procedures and notes that jurisdictions can amend the model code during adoption.
View ICC source ↗Confirm the adopted edition and amendments before converting a model-code provision into a procurement specification.
Not every battery sitting in a building is the same storage scenario.
Before applying a storage requirement, establish what is actually present. Battery condition, packaging, energy, quantity and whether the battery is installed in equipment can materially change the applicable pathway.
This can fall outside provisions written specifically for stored loose batteries and may instead be addressed through equipment or application-specific requirements.
Some model-code provisions provide specific exceptions or different treatment based on packaging and battery rating.
Quantity, arrangement, fire area, battery energy and building conditions can become increasingly important.
Charging introduces an active electrical process and should not be treated as identical to passive storage.
Batteries that have left normal service require a separate assessment and isolation pathway rather than routine storage.
An installed ESS has its own developed code and standards framework and should not be confused with loose battery inventory.
The 2024 IFC introduced a dedicated lithium battery storage framework.
Section 320 of the 2024 International Fire Code addresses storage of lithium-ion and lithium-metal batteries. It distinguishes limited indoor storage, larger indoor storage areas and outdoor storage.
The section also contains exceptions, meaning the presence of a lithium battery does not automatically place every battery within the same Section 320 requirements.
Defines the general storage scope and identifies battery situations excluded from the section.
The 2024 model code establishes a permit trigger for certain accumulations exceeding 15 cubic feet.
Requires a fire safety plan addressing emergency response for covered lithium battery storage.
Provides a container-based pathway for not more than 15 cubic feet of covered battery storage.
Introduces more substantial requirements where the limited-storage pathway is not used.
Addresses separation, storage-area size and fire detection for covered outdoor storage.
A facility could be located in a jurisdiction using an earlier edition, a locally amended edition or another fire-code framework. Verify local adoption before using this number as the basis of design.
The current model-code text includes scope, permit, fire-safety-plan, indoor-storage and outdoor-storage requirements for lithium-ion and lithium-metal batteries.
View IFC source ↗The model code also identifies important exceptions.
These exceptions reinforce why the exact battery scenario needs to be established before applying the storage rules.
Other fire-code provisions, workplace-safety requirements, manufacturer instructions and local rules may still be relevant.
The 2024 IFC separates limited container storage from larger indoor storage areas.
The model code permits not more than 15 cubic feet of covered batteries to be stored through a specified container arrangement.
- Open-top noncombustible containers or approved battery-collection containers
- Individual containers or groups limited to 7.5 cubic feet
- Separation between container groups
- Separation from exits and exit-access doors
Storage outside the limited-container pathway brings a more developed fire and explosion protection framework into the current model code.
- Technical opinion and report
- Fire-resistance separation where applicable
- Automatic sprinkler or approved suppression system
- Automatic fire detection and alarm
- Explosion control where recommended by the approved report
For covered indoor storage areas, the 2024 IFC requires a technical opinion and report evaluating fire and explosion risks and addressing subjects such as possible flammable-gas deflagration and the basis of design for fire suppression.
Section 320.4.2.6 provides reduced requirements for certain indoor storage areas where lithium-ion batteries have a demonstrated state of charge not exceeding 30 percent and approved procedures ensure that limit is maintained.
Packaging, state of charge, storage arrangement, building construction, detection, suppression and local approval can all affect the final requirement.
Moving batteries outdoors changes the requirement — it does not remove it.
Outdoor storage can reduce some building exposures, but the current IFC model code still addresses separation from buildings and other exposures, storage-area dimensions and automatic fire detection.
The 2024 model code includes separation options involving distance, rated construction or approved prefabricated structures.
The current model code limits individual outdoor storage areas and requires separation between multiple storage areas.
Maximum storage height forms part of the current outdoor-storage provisions.
Covered outdoor storage areas require an approved automatic fire detection and alarm system under the 2024 model code.
The 2024 IFC contains separate provisions for powered micromobility devices, including charging equipment, charging areas, removable batteries and fire-safety planning. A commercial fleet should therefore not assume that general loose-battery storage is the only relevant code section.
Review Battery Charging Best Practices →Once condition becomes uncertain, the operational question changes from normal storage toward assessment, separation and controlled disposition.
Explore Damaged Battery Isolation →Fire-code storage requirements sit alongside workplace safety and technical standards.
OSHA does not currently provide one lithium-ion-specific storage standard, but its existing workplace standards and General Duty Clause can become relevant to battery hazards and employee exposure.
OSHA workplace guide →NFPA 855 is the Standard for the Installation of Stationary Energy Storage Systems. The 2026 edition also contains Chapter 14, dedicated to storage of lithium-metal or lithium-ion batteries.
NFPA 855 source ↗The fire code official or other Authority Having Jurisdiction can be central to determining what code applies and whether a proposed storage arrangement is acceptable.
Fire Codes, NFPA, UL & AHJ →Establish whether the batteries form an installed energy-storage system or are being stored as inventory before applying ESS terminology, testing requirements or standards.
A sensible storage decision starts with the site — not the cabinet catalogue.
Type, chemistry where known, Wh, quantity, packaging and battery condition.
Passive storage, charging, retail stock, damaged-battery isolation, manufacturing or stationary energy storage.
Do not rely on battery count alone. Establish the measurements relevant to the applicable code.
State, county and city can affect the adopted fire and building code.
Determine whether the jurisdiction uses the 2024 IFC, another edition or a different regulatory framework.
Model-code language may have been modified during adoption.
Separation, fire resistance, suppression, detection, ventilation, monitoring or other controls should follow the requirement.
Where required, confirm the arrangement with the AHJ, fire authority, EHS team, insurer or other responsible party.
The stronger procurement route is to establish the applicable requirement first and then determine whether the proposed cabinet, room, locker, container or other system provides the capabilities and evidence needed for that requirement.
Storage format should follow the identified requirement.
Cabinets, lockers, rooms, outdoor structures and combined storage-and-charging systems provide different capabilities and should not be treated as interchangeable.
Verify the code and edition behind the requirement.
Code adoption and standards evolve. Check the current jurisdiction, edition and applicability before treating a provision as a legal requirement for a particular site.
Start with the batteries, site and operating conditions.
Battery Safe Systems can help organise the storage requirement and compare suitable cabinet, locker, room, outdoor or combined storage-and-charging approaches.