POISON GAS placard — hazard class 2.3
What is the hazard class or division for POISON GAS placard — hazard class 2.3?
For POISON GAS placard, hazard class or division is 2.3; placarding threshold is any quantity; placard design regulation is 172.540; regulation is § 172.504 General placarding requirements, recorded from its source on 2026-08-19; source re-checked 2026-09-16.
2.3 | POISON GAS | 172.540
— ecfr.gov, retrieved 2026-08-19
- Category of material
- 2.3 our reading
- Hazard class or division
- 2.3 verified
- Placard name
- POISON GAS verified
- Placarding threshold
- any quantity our reading
- Placard design regulation
- 172.540 verified
- Regulation
- § 172.504 General placarding requirements.
- General rule (172.504(a))
- Except as otherwise provided in this subchapter, each bulk packaging, freight container, unit load device, transport vehicle or rail car containing any quantity of a hazardous material must be placarded on each side and each end with the type of placards specified in tables 1 and 2 of this section
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.
Source
- ecfr.govhttps://www.ecfr.gov/current/title-49/section-172.504