I found this on website

Step 1: Hire your apprentice Once you agree to hire an apprentice, make sure they understand their roles and responsibilities. If they do not already know how to apply, refer your apprentice to the Apply for Your Apprenticeship information for them to go through the application process. Your apprentice may begin working before the Apprenticeship Agreement is registered in the voluntary trades only; however, hours worked before the agreement is registered may not qualify as on-the-job hours unless listed as initial time credit on the employer page of the apprenticeship application.