What Does USPS® Classify as Hazardous Materials?
Effective July 12: The HazMat handling fee is $7.50 per package. The noncompliance penalties for packages not properly labeled is $50. If a person knowingly mails items or materials that are dangerous or injurious to life, health, or property, they may face a civil penalty of at least $250, but not more than $100,000 per violation, the costs of any cleanup associated with each violation, and damages. They may also face criminal penalties.