# Biological Substance, Category B · UPS — Mailing and air-carriage restrictions by item category For Biological Substance, Category B · UPS, item category is Biological Substance, Category B; carrier is UPS; restriction type is restricted; scope is United States; conditions is as defined in 49 C.F.R. § 173.134, which are prepared in accordance with all aspects of 49 C.F.R, recorded from its source on 2026-08-31. - **Item category:** Biological Substance, Category B _(verified: appears in the quote below)_ - **Carrier:** UPS _(our reading, not quoted from the source)_ - **Restriction type:** restricted _(our reading, not quoted from the source)_ - **Scope:** United States _(our reading, not quoted from the source)_ - **Conditions:** as defined in 49 C.F.R. § 173.134, which are prepared in accordance with all aspects of 49 C.F.R. _(verified: appears in the quote below)_ ## What the source says > UPS accepts Packages containing “Biological Substance, Category B” as defined in 49 C.F.R. § 173.134, which are prepared in accordance with all aspects of 49 C.F.R. § 173.199. ## Where each value comes from This source states these in separate places, so each value is shown with the passage that states it. ### Scope > UPS® Tariff/Terms and Conditions of Service – United States ## Source - https://www.ups.com/assets/resources/webcontent/en_US/terms-service-us.pdf Last verified: 2026-08-31. Review by: 2027-08-31. Part of [Mailing and air-carriage restrictions by item category](https://referencesource.org/shipping-restrictions-by-class/).