Special packaging
(4) Special packaging means packaging that is designed or constructed to be significantly difficult for children under 5 years of age to open or obtain a toxic or harmful amount of the substance contained therein within a reasonable time and not difficult for normal adults to use properly, but does not mean packaging which all such children cannot open or obtain a toxic or harmful amount within a reasonable time. (5) Labeling means all labels and other written, printed, or graphic matter upon any household substance or its package, or accompanying such substance.