TIL the military cannot enlist a recruit with an IQ measured lower than 80 and is required to keep enlisted individuals with an IQ of 81-92 to less than 20% of the armed forces in active duty.

(a)The number of persons originally enlisted or inducted to serve on active duty (other than active duty for training) in any armed force during any fiscal year whose score on the Armed Forces Qualification Test is at or above the tenth percentile and below the thirty-first percentile may not exceed 20 percent of the total...