[BillyMac]

NFHS Rule 1: SECTION 12 BALL
ART. 1 The ball shall meet the following specifications:
a. Its solid color shall be the approved orange shade or natural color.
b. It shall be spherical.
c. It shall have a deeply-pebbled cover with horizontally shaped panels bonded tightly to the rubber carcass.
d. The circumference shall be:
1. Within a minimum of 291/2 inches to a maximum of 30 inches for high school boys competition.
2. Within a minimum of 281/2 inches to a maximum of 29 inches for high school girls competition.
e. The weight shall be:
1. Within a minimum of 20 ounces to a maximum of 22 ounces for high school boys competition.
2. Within a minimum of 18 ounces to a maximum of 20 ounces for high school girls competition.
f. The black rubber rib separating the panels shall not exceed ¼ inch in width.
g. The ball shall include the NFHS Authenticating Mark. The mark can be displayed in either format: A current list of NFHS authenticated products can be found on the Web site, nfhs.org.
NOTE: By state association adoption, either legal-size ball may be used for boys junior high school competition.
ART. 2 The ball shall be inflated to an air pressure such that when it is dropped to the playing surface from a height of 6 feet, measured to the bottom of the ball, it shall rebound to a height, measured to the top of the ball, of not less than 49 inches when it strikes on its least resilient spot, nor more than 54 inches when it strikes on its most resilient spot.
NOTE: To be legal, the air pressure which will give the required reaction must be stamped on it. The pressure for game use must make the ball bounce legally.
ART. 3 The home team shall provide a ball which meets the specifications. The referee shall be the sole judge of the legality of the ball and may select a ball provided by the visiting team.