Final answer:
AR 670-1 is a U.S. Army regulation that requires female personnel to keep their nails shorter than 1/4 inch from the fingertip. Hence, the statement is true.
Step-by-step explanation:
AR 670-1 is a regulation under the United States Army that pertains to the wear and appearance of Army uniforms and insignia. Specifically, it had laid down the maximum permitted length of nails for both male and female personnel. According to the AR 670-1 regulations, females are indeed required to keep their nails shorter than 1/4 inch, as measured from the fingertip. Therefore, the statement is true that a female can be required to keep her nails shorter than the maximum allowed length according to this regulation.
Learn more about AR 670-1 Regulations