The PSARA Act and Rules stipulate specific physical fitness standards for security guards, which include a minimum height requirement of 160 cms for males and 150 cms for females, with corresponding weight as per the height and weight table. Guards must have a chest measurement of 80 cms with an expansion of 4 cms (no minimum requirement for females). Additionally, guards should possess 6/6 far-sight vision, 0.6/0.6 near vision, be free from color blindness, and capable of hearing and responding to spoken voices and alarms generated by security equipment. They should be physically capable of running one kilometer in six minutes and possess the necessary dexterity and strength for search and handling tasks.