From the program guide pdf:
• EVCIP applications can be submitted when the applicant owns/leases a new or used eligible electric vehicle that is:
- registered, plated and insured in Ontario in the applicant’s name;
- located in Ontario; and,
- for personal use.
...
• EVCIP purchase and installation incentive applications must be received within 3 months (90 days) of the ESA certificate date.
- If only applying for a purchase incentive, your application must be submitted within 3 months (90 days) of the charger purchase date.