http://www.nfhs.org/core/contentmana...f_Emphasis.pdf
Plus some further comments on the two rule changes:
Individual state associations will determine if the equipment will be used, at what tournament round(s) and by whom.
During their pregame responsibilities, game officials should determine if red/LED lights are present in order to adjudicate end-of-period situations properly.
And they even managed to mention rough play in two different POEs!