DOT 3A, DOT 3AA, DOT 3A480X, DOT 3B, DOT 4B, DOT 4BA, DOT 4BW · External visual inspection · Butadiene, inhibited, that is commercially free from corroding components
For DOT 3A, DOT 3AA, DOT 3A480X, DOT 3B, DOT 4B, DOT 4BA, DOT 4BW, test or inspection is External visual inspection; condition or service qualifier is Butadiene, inhibited, that is commercially free from corroding components; interval is at five-year intervals after the first inspection; regulation section is 49 CFR § 180.209, recorded from its source on 2026-08-06; source re-checked 2026-09-30.
- Container specification
- DOT 3A, DOT 3AA, DOT 3A480X, DOT 3B, DOT 4B, DOT 4BA, DOT 4BW verified
- Test or inspection
- External visual inspection our reading
- Interval
- at five-year intervals after the first inspection
- Condition or service qualifier
- Butadiene, inhibited, that is commercially free from corroding components verified
- Regulation section
- 49 CFR § 180.209
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
DOT 3A, DOT 3AA, DOT 3A480X, DOT 3B, DOT 4B, DOT 4BA, DOT 4BW | Butadiene, inhibited, that is commercially free from corroding components.
— law.cornell.edu, retrieved 2026-08-06
Source
- law.cornell.eduhttps://www.law.cornell.edu/cfr/text/49/180.209