The application for COBRA insurance, also know as the enrollment of election form, should be provided by your employer within 45 days of your last day of work.  You can not use a generic form found online to elect COBRA medical insurance so you must reach out to your employer or health insurance company for the form.  If 45 days have passed and you are sure you qualify for COBRA insurance, reach out to the Department of Labor at 866-444-3272.