How to Navigate USPS Lithium Battery Label Rules for Recycled Packaging?
The United States Postal Service (USPS) mandates specific labeling for lithium batteries shipped in recycled or reused packaging to mitigate fire risks. All packages must display a DOT-approved lithium battery hazard label, even when using repurposed materials. Handwritten labels are prohibited — only pre-printed, legible warnings measuring at least 5×5 inches meet compliance standards. Double-check … Read more