# Pipeline welding trucks — Federal hours-of-service exemptions by commercial driver operation type For Pipeline welding trucks, cfr citation is 49 CFR 395.1(x); who qualifies is drivers of “pipeline welding trucks,” as defined in 49 CFR 390.38(b); what it exempts from is The rules in this part do not apply; baseline limit (for context) is All of part 395, including the § 395.3 11-hour driving cap, 14-hour window and 60/70-hour limits, recorded from its source on 2026-08-28; source re-checked 2026-08-30. - **Exemption:** Pipeline welding trucks _(our reading, not quoted from the source)_ - **CFR citation:** 49 CFR 395.1(x) _(our reading, not quoted from the source)_ - **Who qualifies:** drivers of “pipeline welding trucks,” as defined in 49 CFR 390.38(b) _(verified: appears in the quote below)_ - **What it exempts from:** The rules in this part do not apply _(verified: appears in the quote below)_ - **Baseline limit (for context):** All of part 395, including the § 395.3 11-hour driving cap, 14-hour window and 60/70-hour limits. _(our reading, not quoted from the source)_ ## What the source says > (x) Pipeline welding trucks. The rules in this part do not apply to drivers of “pipeline welding trucks,” as defined in 49 CFR 390.38(b) . ## Source - https://www.ecfr.gov/current/title-49/subtitle-B/chapter-III/subchapter-B/part-395/subpart-A/section-395.1 Last verified: 2026-08-30. Review by: 2027-08-28. Part of [Federal hours-of-service exemptions by commercial driver operation type](https://referencesource.org/federal-hours-of-service-exemptions-by-operation-type/).