(a) The square-inch area of the principal display panel shall be:
(1) in the case of a rectangular container, 1 entire side of which properly can be considered to be the principal display panel, the product of the height times the width of that side;
(2) in the case of a cylindrical or nearly cylindrical container, 40% of the product of the height of the container times the circumference. or
(3) in the case of any other shaped container, 40% of the total surface of the container unless such container presents an obvious principal display panel (for example, the top of a triangular or circular package of cheese, or the top of a can of shoe polish), the area shall consist of the entire such surface.
(b) Determination of the principal display panel shall exclude tops, bottoms, flanges at tops and bottoms of cans, and shoulders and necks of bottles or jars.History: Rule 6-76, eff 19 Oct 76, § 31.