49 C.F.R. § 179.201-1
Individual specification requirements
In addition to § 179.200, the individual specification requirements are as follows:
| DOT Specification 1 | Insulation | Bursting pressure (psig) | Minimum plate thickness (inches) | Test pressure (psig) | Bottom outlet | Bottom washout | References (179.201 - ***) |
|---|---|---|---|---|---|---|---|
| 111A60ALW1 | Optional | 240 | 1⁄2 | 60 | Optional | Optional | 6(a). |
| 111A60ALW2 | Optional | 240 | 1⁄2 | 60 | No | Optional. | |
| 111A60W1 | Optional | 240 | 7⁄16 | 60 | Optional | Optional | 6(a). |
| 111A60W2 | Optional | 240 | 7⁄16 | 60 | No | Optional. | |
| 111A60W5 | Optional | 240 | 7⁄16 | 60 | No | No | 3, 6(b). |
| 111A60W6 | Optional | 240 | 7⁄16 | 60 | Optional | Optional | 4, 5, 6(a), 6(c). |
| 111A60W7 | Optional | 240 | 7⁄16 | 60 | No | No | 4, 5, 6(a). |
| 111A100ALW1 | Optional | 500 | 5⁄8 | 100 | Optional | Optional | 6(a). |
| 111A100ALW2 | Optional | 500 | 5⁄8 | 100 | No | Optional. | |
| 111A100W1 | Optional | 500 | 7⁄16 | 100 | Optional | Optional | 6(a). |
| 111A100W2 | Optional | 500 | 7⁄16 | 100 | No | Optional. | |
| 111A100W3 | Yes | 500 | 7⁄16 | 100 | Optional | Optional | 6(a). |
| 111A100W4 | Yes (see 179.201-11) | 500 | 7⁄16 | 100 | No | No | 6(a), 8, 10. |
| 111A100W5 | Optional | 500 | 7⁄16 | 100 | No | No | 3. |
| 111A100W6 | Optional | 500 | 7⁄16 | 100 | Optional | Optional | 4, 5, 6(a) and 6(c). |
| 111A100W7 | Optional | 500 | 7⁄16 | 100 | No | No | 4, 5, 6(c). |
| 1 Tanks marked “ALW” are constructed from aluminum alloy plate; “AN” nickel plate; “CW,” “DW,” “EW,” “W6,” and “W7” high alloy steel or manganese-molybdenum steel plate; and those marked “BW” or “W5” must have an interior lining that conforms to § 179.201-3. | |||||||