AAR M-1003 – Quality Assurance Program Certification
- Chehalis, WA
- Chicago Heights, IL
- Cleburne, TX
- Corsicana, TX
- Dothan, AL
- Finley, WA
- Monclova, Mexico (GIMSA)
- Jackson, MO
- Kansas City, KS
- Kennett, MO
- Lewistown, PA
- Macon, GA
- Marmaduke, AR
- Omaha, NE
- Paragould, AR
- Red Oak, IA
- Sahagún, Mexico
- San Antonio, TX
- San Bernardino, CA
- Tacoma, WA
- Tlaxcala, Mexico
AAR M-1002 – Tank Car Facility Certification
- Cleburne, TX
- Finley, WA
- Monclova, Mexico (GIMSA)
- Jackson, MO
- Marmaduke, AR
- Omaha, NE
- Tlaxcala, Mexico
ISO 9001:2015 – Quality Management Systems
- Drobeta-TurnuSeverin, Romania (Greenbrier AstraRail)
- Caracal, Romania (Greenbrier AstraRail)
- Hortolândia, São Paulo, Brazil (Greenbrier Maxion)
- Sahagún, Mexico
- Świdnica, Poland (Greenbrier Wagony Swidnica)
ISO 14001:2015 – Environmental Management Systems
- Drobeta-TurnuSeverin, Romania (Greenbrier AstraRail)
- Caracal, Romania (Greenbrier AstraRail)
- Hortolândia, São Paulo, Brazil (Greenbrier Maxion)
- Świdnica, Poland (Greenbrier Wagony Swidnica)
ISO 45001:2018 – Occupational Health and Safety Management Systems
- Hortolândia, São Paulo, Brazil (Greenbrier Maxion)
- Świdnica, Poland (Greenbrier Wagony Swidnica)
- Technical Specifications for Interoperability (TSI Module SD)
- Drobeta-TurnuSeverin, Romania (Greenbrier AstraRail)
- Caracal, Romania (Greenbrier AstraRail)
- Świdnica, Poland (Greenbrier Wagony Swidnica)