# Self defense spray (mace, pepper spray) · FAA (air transport) — Flying with restricted items: FAA, TSA and IATA baggage and air cargo rules For Self defense spray (mace, pepper spray), authority is FAA (air transport); restriction type is restricted; scope is checked baggage only; not allowed in carry-on; conditions is One self defense spray, not exceeding 118 ml (4 fluid ounces), per passenger in checked baggage only, recorded from its source on 2026-08-10. - **Item or substance:** Self defense spray (mace, pepper spray) - **Authority:** FAA (air transport) _(our reading, not quoted from the source)_ - **Restriction type:** restricted _(our reading, not quoted from the source)_ - **Scope:** checked baggage only; not allowed in carry-on _(our reading, not quoted from the source)_ - **Conditions:** One self defense spray, not exceeding 118 ml (4 fluid ounces), per passenger in checked baggage only. ## What the source says > Self Defense Spray Mace, pepper spray not exceeding 118 ml (4 fl oz) Quantity limitations: One self defense spray, not exceeding 118 ml (4 fl oz), per passenger in checked baggage only. ## Source - https://www.faa.gov/hazmat/packsafe/sprays-repellents Last verified: 2026-08-10. Review by: 2027-08-10. Part of [Flying with restricted items: FAA, TSA and IATA baggage and air cargo rules](https://referencesource.org/air-travel-item-restrictions/).