g. The ball for 9th grade and above, as in Table 1-3-1, 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 website, www.nfhs.org.
h. Contain only the following permissible items:
-
- Ball manufacturer’s name and/or logo;
- School name and/or logo;
- Conference name and/or logo;
- State association name and/or logos; and
- NFHS name and/or logos
NOTE: By state high school association adoption, the ball to be used in games involving only players below the 9th grade may have dimensions as found in the following table:
Table 1-3-1
BALL SPECIFICATIONS

METHOD OF MEASURING
-
- All measurements shall be made after the ball is inflated to 13 psi.
- The long circumference should be measured 90 degrees from lace around the ends of the ball, over the groove, but not in the groove.
- The long axis should be measured from end to end but not in the nose indentation.
- The short circumference should me measured around the ball, over the valve, over the lace, but not over a cross lace.