--- type: restriction id: usps-pesticides-insecticides-herbicides-with-oral-ld50-greater-than-300-mg-kg-nonregu asset: shipping-restrictions-by-class title: "Pesticides, insecticides, herbicides with oral LD50 greater than 300 mg/kg (nonregulated) — Postal shipping restrictions by item category" sources: - https://pe.usps.com/text/pub52/pub52c3_025.htm source_quote: "Liquids and solids such as pesticides, insecticides, herbicides, and irritating material ( 346.11 (b) ), that do not meet the classification criteria of a hazardous material per 49 CFR § 172.101 with an oral LD50 value greater than 300 mg/kg are mailable but must be packaged in rigid outer packaging" generated: true harvested: 2026-08-04 stale_after: 2027-08-04 item_category: "Pesticides, insecticides, herbicides with oral LD50 greater than 300 mg/kg (nonregulated)" carrier: "USPS" restriction_type: "restricted" scope: "all domestic mail" conditions: "Mailable but must be packaged in rigid outer packaging per 339.4 and able to withstand normal transit; liquids must also follow 451.3(a)" verified: false unverified_fields: carrier, conditions, item_category, scope --- **Item category:** Pesticides, insecticides, herbicides with oral LD50 greater than 300 mg/kg (nonregulated) **Carrier:** USPS **Restriction type:** restricted **Scope:** all domestic mail **Conditions:** Mailable but must be packaged in rigid outer packaging per 339.4 and able to withstand normal transit; liquids must also follow 451.3(a) > Liquids and solids such as pesticides, insecticides, herbicides, and irritating material ( 346.11 (b) ), that do not meet the classification criteria of a hazardous material per 49 CFR § 172.101 with an oral LD50 value greater than 300 mg/kg are mailable but must be packaged in rigid outer packaging Source: