# -1 Individual specification requirements.

- **operation:** document
- **citation:** 49 CFR 179.221-1
- **title:** -1 Individual specification requirements.
- **source type:** regulation
- **agency:** Pipeline and Hazardous Materials Safety Administration
- **status:** current
- **official:** true
- **published on:** Not available
- **effective on:** 2026-08-18
- **summary:** In addition to § 179.220, the individual specification requirements are as follows:

DOT specification Insulation Burstingpressure(psig) Minimumplatethickness (inches) Test pressure (psig) Bottomoutlet Bottomwashout Reference(179.221-***) 115A60ALW Yes 240 3⁄16 60 Optional. Optional 115A60W1 Yes 240
- **machine formats:** - **json:** https://regulus.evalyn.ai/document/49-cfr-179-221-1.json
- **markdown:** https://regulus.evalyn.ai/document/49-cfr-179-221-1.md
- **app url:** https://regulus.evalyn.ai/document/49-cfr-179-221-1
- **source url:** https://www.ecfr.gov/on/2026-08-18/title-49/section-179.221-1
**body:**

In addition to § 179.220, the individual specification requirements are as follows:

DOT specification Insulation Burstingpressure(psig) Minimumplatethickness (inches) Test pressure (psig) Bottomoutlet Bottomwashout Reference(179.221-***) 115A60ALW Yes 240 3⁄16 60 Optional. Optional 115A60W1 Yes 240 1⁄8 60 Optional Optional 1 115A60W6 Yes 240 1⁄8 60 Optional Optional 1

[Amdt. 170-52, 61 FR 28681, June 5, 1996, as amended at 62 FR 51561, Oct. 1, 1997; 66 FR 45390, Aug. 28, 2001]
- **truncated:** false
- **body characters:** 483