Need to recertify you Lifeguarding/ First Aid and CPR/ AED certifications? American Red Cross Lifeguarding has been updated. Therefore there will be no refresher or challenge courses offered. The only way to renew your Lifeguarding/ First Aid, and CPR-PR certifications is to participate in the full course or this recertification. All certifications are now valid for 2 years so these review sessions will include ALL Lifeguarding, First Aid, and CPR-PR skills and exams.