Us postal service mailing liquids

The United States Postal Service (USPS) has specific guidelines for mailing liquids, which are categorized as hazardous materials. Here are some general guidelines and restrictions:

General Guidelines:

  1. Hazardous Materials: Liquids that are flammable, corrosive, or toxic are considered hazardous materials and are subject to special regulations.
  2. Proper Packaging: Liquids must be packaged in leak-proof containers to prevent spills or leaks during transit.
  3. Labeling: Packages containing liquids must be properly labeled with the correct hazardous materials label and any required warnings or cautions.
  4. Declaration: The sender must declare the contents of the package and indicate that it contains a hazardous material.

Restricted Liquids:

  1. Flammable Liquids: Liquids with a flash point below 140°F (60°C) are prohibited from being mailed, including gasoline, paint thinner, and lighter fluid.
  2. Corrosive Liquids: Liquids that can cause severe burns or damage to skin or eyes are restricted, including bleach, acid, and alkali.
  3. Toxic Liquids: Liquids that are poisonous or can cause harm if ingested, inhaled, or absorbed through the skin are restricted, including pesticides, herbicides, and certain chemicals.
  4. Radioactive Liquids: Liquids containing radioactive materials are prohibited from being mailed.

Permitted Liquids:

  1. Non-Flammable Liquids: Liquids with a flash point above 140°F (60°C) are generally permitted, including water, juice, and perfume.
  2. Non-Corrosive Liquids: Liquids that are not corrosive and do not pose a risk to skin or eyes are permitted, including shampoo, lotion, and soap.
  3. Non-Toxic Liquids: Liquids that are not toxic and do not pose a risk to human health are permitted, including food and beverages.

Special Requirements:

  1. Special Permits: Certain liquids, such as hazardous waste or controlled substances, may require special permits or approvals from the USPS or other regulatory agencies.
  2. Packaging Requirements: Packages containing liquids may require additional packaging, such as absorbent pads or padding, to prevent damage or leakage during transit.
  3. Labeling Requirements: Packages containing liquids must be properly labeled with the correct hazardous materials label and any required warnings or cautions.

It's important to note that the USPS has specific guidelines and regulations for mailing liquids, and it's always best to check with your local post office or the USPS website for the most up-to-date information before mailing any liquids.