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On August 16, 2022 U.S. President Joe Biden signed a law that protects children and other consumers against hazards associated with the accidental ingestion of button cell or coin batteries. “Reese’s Law” was created in honor of Reese Hamsmith, an 18-month-old child who died in 2020 after ingesting a button cell battery from a remote control.

On September 21, 2023 U.S. Consumer Product Safety Commission (CPSC) published a final rule with provisions outlined for button and coin cell batteries found in common household products.

The final rule consists of two Federal Register notices: one incorporating the 2023 version of the industry standard UL 4200A as the federal mandatory rule (the adoption of 16 CFR 1263), and the other introducing additional packaging and labeling requirements for button and coin batteries not covered by UL 4200A.

These requirements do not apply to toy products for children under 14 if the products comply with the ASTM F963 Toy Safety Standard.

SCOPE 

16 CFR 1263.1 ׀ Applies to household type products that incorporate or may use button batteries or coin cell batteries.

DEFINITION  16 CFR 1263.2 ׀ Button cell or coin battery means  (1) A single cell battery with a diameter greater than the height of the battery; or(2) Any other battery, regardless of the technology used to produce an electrical charge, that is determined by the Commission to pose an ingestion hazard. In the context of this regulation, zinc-air batteries, which are not known to be used in consumer products are excluded.

DEFINITION 16 CFR 1263.2 ׀ Consumer product containing button cell or coin batteries means  A consumer product containing or designed to use one or more button cell or coin batteries, regardless of whether such batteries are intended to be replaced by the consumer or are included with the product or sold separately.

Marking  – General Requirements 

All warning statements or icons shall be prominent, legible, easily discernable under normal lighting conditions, and permanently marked. UL 4200A 7A.1 Unless otherwise specified, instructional safeguards do not have to be in multiple colors. If an instructional safeguard is present in more than one color to indicate hazard severity, the color shall be in Printed or screened markings shall also be permanent accordance with the ISO 3864 series. ISO 3864 .

UL 4200A Sec 7A.2 Printed or screened markings shall also be permanent.

UL 4200A Sec 7A.3 Legibility of markings is determined by inspection. Permanency of markings is determined by the rubbing test with a piece of cloth soaked with water or petroleum spirit

UL 4200A Sec 7A.4 & 7D Markings must be in the official language(s) of the country where the product is sold or in English if there is no official language(s).

UL 4200A Sec 7A.5 The safety alert symbol, an exclamation mark in a triangle, when used with the signal word, must precede the signal word. The base of the safety alert symbol must be on the same horizontal line as the base of the letters of the signal word. The height of the safety alert symbol must equal or exceed the signal word letter height.

UL 4200A Sec 7A.6.