Postal Service facilities that store large quantities of rock salt, sand and other de-icing and anti-skidding chemical products may be regulated by environmental laws.

These regulations could include mandatory chemical reporting, restrictions on the amount stored, permitting and requirements for on-site storage areas.

Regardless of location, facilities that order or store de-icing and anti-skidding products must keep these materials under shelter, such as an awning, shed or tarp. This is required under the Postal Service’s zero discharge policy.

Additionally, facilities must never purchase or store more than 10,000 pounds of de-icing and anti-skidding products in a single location.

To determine your compliance obligations, contact your designated environmental specialist. The Sustainability Blue page has a list.

Source: USPS