The following words, terms and phrases, when used in this chapter, shall have the meaning ascribed to them in this section, except where the context clearly indicates a different meaning:

(12) “Smoking” means:

• a. The burning of a lighted cigarette, cigar, pipe or any other matter or substance that contains tobacco; or

• b. The use of an electronic smoking device which creates an aerosol or vapor, in any manner or in any form.

Except as is provided in § 2904 of this title, and in order to reduce the levels of exposure to environmental tobacco smoke and emissions produced by electronic smoking devices, smoking shall not be permitted and no person shall smoke in any indoor enclosed area to which the general public is invited or in which the general public is permitted, including, but not limited to:

• (25) Public and nonpublic schools.

The five-year plan (2017-2022) addresses e-cigarette use and vaping among high school and college students as a critical issue, and describes a vaping campaing targeting teens and young adults to make them aware of the unknown risks of vaping.