16 C.F.R. § 500.22

Abbreviations.

The following abbreviations and none other may be employed in the required net quantity declaration:

Inch—in.

Feet or foot—ft.

Fluid—fl.

Liquid—liq.

Ounce—oz.

Gallon—gal.

Pint—pt.

Pound—lb.

Quart—qt.

Square—sq.

Weight—wt.

Yard—yd.

Avoirdupois—avdp.

Cubic—cu.

Periods and plural forms shall be optional. Exponents are permitted.

[80 FR 71689, Nov. 17, 2015]