A Journeyman Plumber shall mean a person who is registered with the Grand Island Building Department and who has completed their apprenticeship under the supervision of a Contracting Master Plumber. A Journeyman Plumber has passed a journeyman level plumbing examination and has a working knowledge and application of the skills required to be employed as a plumber in accordance with the standards, rules, and regulations established by the Grand Island Plumbing Board. A practicing Journeyman Plumber must be an employee of a registered Contracting Master Plumber and work under a Contracting master Plumber’s supervision.