Specification 51 portable tank · periodic inspection and test

For Specification 51 portable tank, test or inspection is periodic inspection and test; interval is at least once every five years; regulation section is 49 CFR § 180.605, recorded from its source on 2026-08-10; source re-checked 2026-09-30.

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

(2) Each Specification 51 portable tank must be given a periodic inspection and test at least once every five years.

— law.cornell.edu, retrieved 2026-08-10

Source

• law.cornell.eduhttps://www.law.cornell.edu/cfr/text/49/180.605

Last verified against source: 2026-09-30. Due for re-check by 2027-09-30. This page as Markdown · OKF bundle · full dataset as JSON.