As used in this chapter the following words shall have the following meanings:

(1) "Vocational education" shall have the same meaning as set forth in RCW 72.62.020.

(2) "Students" means inmates of adult correctional institutions or facilities enrolled in a vocational education program.

(3) "Products" means goods, wares, articles, or merchandise produced by students as part of a vocational education program.

(4) "Services" means work performed for others by students as part of a vocational education program not related to the production of products.