21. THIS WAIVER & INDEMNITY SHALL NOT BE DEEMED TO IMPLY ANY WARRANTY OR UNDERTAKING BY ANY OF THE INDEMNIFIED PARTIES OR OTHERWISE THAT THE NATURE OR PHYSICAL CONDITION OF THE CIRCUIT AND THE PROVISIONS OF MARSHALS, FIRE, OR MEDICAL SERVICES AND EMERGENCY SERVICES (IF ANY) ARE SUITABLE FOR THE USE CONTEMPLATED BY THE INDIVIDUAL AND THE INDIVIDUAL MUST FIRST SATISFY ITSELF AS TO THE SAFETY AND SUITABILITY IN ALL RESPECTS OF THE CIRCUIT AND SUCH SERVICES BEFORE COMMENCING TESTING.