Hazardous materials — aircraft and rail quantity limits (HMT Columns 9A/9B) · US DOT (49 CFR, air and rail)
For Hazardous materials, authority is US DOT (49 CFR, air and rail); item or substance is Hazardous materials — aircraft and rail quantity limits (HMT Columns 9A/9B); restriction type is restricted; scope is passenger-carrying aircraft, passenger rail car, cargo aircraft; conditions is Columns 9A and 9B specify the maximum quantities per package by passenger-carrying aircraft or rail car (9A) or by cargo aircraft only (9B); 'Forbidden' means the material may not be transported in that mode, recorded from its source on 2026-08-10.
- Item or substance
- Hazardous materials — aircraft and rail quantity limits (HMT Columns 9A/9B)
- Authority
- US DOT (49 CFR, air and rail) our reading
- Restriction type
- restricted our reading
- Scope
- passenger-carrying aircraft, passenger rail car, cargo aircraft our reading
- Conditions
- Columns 9A and 9B specify the maximum quantities per package by passenger-carrying aircraft or rail car (9A) or by cargo aircraft only (9B); 'Forbidden' means the material may not be transported in that mode.
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
Columns 9A and 9B specify the maximum quantities that may be offered for transportation in one package by passenger-carrying aircraft or passenger-carrying rail car (Column 9A) or by cargo aircraft only (Column 9B)
— ecfr.gov, retrieved 2026-08-10
Source
- ecfr.govhttps://www.ecfr.gov/current/title-49/subtitle-B/chapter-I/subchapter-C/part-172/subpart-B