Section 20.06.01.220 - APPRENTICESHIP CERTIFICATE01.Procedure to Obtain Certificate. After submitting the application form, an apprentice candidate must take the written examination. Upon passing the written examination, the Apprenticeship Certificate will then be issued at no charge.02.Regulations Governing Use of Certificate. The apprentice may scale only under the direct supervision of a licensed scaler. The scale determined by the apprentice may not be used as the sole basis for payment.Idaho Admin. Code r. 20.06.01.220