1-Chloro-1,1-difluoroethane or Refrigerant gas R 142b
For 1-Chloro-1,1-difluoroethane or Refrigerant gas R 142b, carrier is USPS; restriction type is restricted; scope is domestic mail: surface only (air prohibited); conditions is Hazard class 2.1, UN2517, packing group n/a; domestic mail air: Prohibited; domestic mail surface: 2A, recorded from its source on 2026-08-10.
- Item category
- 1-Chloro-1,1-difluoroethane or Refrigerant gas R 142b verified
- Carrier
- USPS our reading
- Restriction type
- restricted our reading
- Scope
- domestic mail: surface only (air prohibited) our reading
- Conditions
- Hazard class 2.1, UN2517, packing group n/a; domestic mail air: Prohibited; domestic mail surface: 2A verified
Values marked our reading are our classification of what the source says — the source does not print them in those words. The quote below is the evidence for each one; judge it yourself.
What the source says
1-Chloro-1,1-difluoroethane or Refrigerant gas R 142b 2.1 UN2517 n/a Prohibited 2A
— pe.usps.com, retrieved 2026-08-10
Source
- pe.usps.comhttps://pe.usps.com/cpim/ftp/pubs/pub52/pub52.pdf