Sec. 20. All such tanks shall be welded, brazed or riveted and shall be heavily coated outside with asphaltum or other rust-resisting material. All tanks shall be tested for leakage and shall be tight at 5 pounds air pressure. All tanks having a capacity in excess of 275 gallons shall bear the underwriter's label.
Mich. Comp. Laws § 125.570
Tanks; construction, testing; underwriter's label
1929, Act 319, Imd
Official source: Michigan Legislature. Reproduced from public-domain Michigan statutes; confirm against the official source for the current text. Not legal advice.