How often do I recertify, and what if my status lapses?

• Level 2 and Level 3 require recertification every four years, through the exam only.
• Practical hours, once earned at a level, are kept for the Referee's whole tenure.
• Level 1 does not require recertification.
• If a Level 2 or Level 3 Referee does not recertify, their status becomes "expired". To officiate at that level again, they must pass the Level 2 or Level 3 exam.
• A Level 3 Referee who writes the exam before their current certification expires and does not pass keeps their existing certification.

Source: https://www.golfcanada.ca/become-a-rules-official/