“Warning: Smoking Permitted” signs shall be prominently posted and properly maintained where smoking is permitted pursuant to § 2904(2) and (4) of this title. Such signs shall be posted and maintained by the owner, operator, manager or other person having control of such area. The letters on such signs shall be at least 1 inch in height.

69 Del. Laws, c. 287, § ?1; 73 Del. Laws, c. 275, § ?9;