An act to protect children and other consumers against hazards associated with the accidental ingestion of button cell or coin batteries by requiring the Consumer Product Safety Commission to promulgate a consumer product safety standard to require child-resistant closures on consumer products that use such batteries, and for other purposes.

Reese's Law
Section 2 includes:
• Performance requirements for consumer products that contain or are designed to use button cell or coin batteries, including children’s products that are not toys.

• Labeling requirements for consumer product packaging, accompanying literature, on-product (where practicable), and on button cell or coin battery packaging.

• Exemption: Toys (16 CFR 1250)
This part requirement CPSC has issued a safety standard 16 CFR 1263 on Sep 21, 2023

Section 3 includes:
• Special packaging (child-resistant packaging) for button cell or coin batteries, whether sold separately or separately included with a consumer product.
16 CFR § 1700.15, with the method described in 16 CFR § 1700.20 must undergo both the child test and adult test.
• Effective date:
Button cell or coin battery packaging: February 12, 2023 : Zinc-air button cell or coin battery packaging : March 8, 2024 (enforcement discretion)

• Exemption:
Batteries packaged with ANSI C18.3 Safety Standard for Portable Lithium Primary Cells and Batteries
Reese's Law

General sales situation of button batteries

Scenario 1: Battery manufacturer - sells batteries separately

Scenario 2: Product manufacturer - the product uses button batteries (without batteries or batteries installed)

Scenario 3: Product manufacturer - the product uses button batteries + comes with spare batteries and is individually packaged