(a) No school shall permit the smoking or use of a tobacco product by pupils of the school while the pupils are on campus, or while attending school-sponsored activities or while under the supervision and control of school district employees.
(b) The governing board of any school district maintaining a high school shall take all steps it deems practical to discourage high school students from smoking.
(c) For purposes of this section, “smoking” has the same meaning as in subdivision (c) of Section 22950.5 of the Business and Professions Code.
(d) For purposes of this section, “tobacco product” means a product or device as defined in subdivision (d) of Section 22950.5 of the Business and Professions Code.