# Foreign cylinder — How often hazmat cylinders, cargo tanks, IBCs and portable tanks must be retested

For Foreign cylinder, test or inspection is Periodic requalification; interval is 5; minimum test pressure is As marked on cylinder, but not less than 5/3 of any service or working pressure marking; regulation section is 49 CFR § 180.209, recorded from its source on 2026-08-06.

- **Container specification:** Foreign cylinder _(verified: appears in the quote below)_
- **Test or inspection:** Periodic requalification _(our reading, not quoted from the source)_
- **Interval:** 5 _(verified: appears in the quote below)_
- **Minimum test pressure:** As marked on cylinder, but not less than 5/3 of any service or working pressure marking _(verified: appears in the quote below)_
- **Regulation section:** 49 CFR § 180.209 _(verified: appears in the quote below)_

## What the source says

> Foreign cylinder ( see <https://www.law.cornell.edu/cfr/text/49/173.301#j> § 173.301(j) of this subchapter for restrictions on use) | As marked on cylinder , but not less than 5/3 of any service or <https://www.law.cornell.edu/definitions/index.php?width=840&height=800&iframe=true&def_id=9cea27360a19f92652d9719fb84b14e4&term_occur=999&term_src=Title:49:Subtitle:B:Chapter:I:Subchapter:C:Part:180:Subpart:C:180.209> working pressure <https://www.law.cornell.edu/definitions/index.php?width=840&height=800&iframe=true&def_id=eb918f673baa7b9803c95ffddc5d1ef5&term_occur=999&term_src=Title:49:Subtitle:B:Chapter:I:Subchapter:C:Part:180:Subpart:C:180.209> marking | 5 ( see <https://www.law.cornell.edu/cfr/text/49/180.209#l> §§ 180.209(l) and 180.213(d)(2)).

## Source

- https://www.law.cornell.edu/cfr/text/49/180.209

Last verified: 2026-08-06. Review by: 2027-08-06.
Part of [How often hazmat cylinders, cargo tanks, IBCs and portable tanks must be retested](https://referencesource.org/hazmat-container-retest-intervals/).