179.220-25—Stamping.

To certify that the tank complies with all specification requirements, each outer shell must be plainly and permanently stamped in letters and figures at least 3/8 -inch high into the metal near the center of both outside heads as follows:

	Examples of required stamping
Specifications	DOT-115A60W6.
Inner container:
Material	ASTM A240-316L.
Shell thickness	Shell 0.167 in.
Head thickness	Head 0.150 in.
Tank builders initials	ABC.
Date of original test	00-0000.
Outer shell:
Material	ASTM A285-C.
Tank builders initials	WYZ.
Code of Federal Regulations 1104
Car assembler (if other than inner container or outer shell builders)	DEF.

[Amdt. 179-9, 36 FR 21343, Nov. 6, 1971]

CFR

179.220-25—Stamping.