The rules covering combustible and flammable liquids shall be formulated and promulgated separately from those covering liquefied petroleum gas and from those covering liquefied natural gases. [C58, 62, 66, 71, 73, 75, 77, 79, 81, §101.3 ] 2010 Acts, ch 1014, §4 ; 2011 Acts, ch 34, §30
Separate rules for liquids and gas.
Iowa Code § 101.3, under COMBUSTIBLE AND FLAMMABLE LIQUIDS AND LIQUEFIED GASES.
Iowa Code § 101.3