JRutledge wroteIf there are religious reasons, I would check with your local authorities on that. There might be a "wavier" for those that have a religious reasoning for such an item.
Wouldn't the governing body that writes the waiver know enough about the rules to simple tell the player to wear pants, that are perfectly legal, instead of tights, that are illegal. I'm not a theologian, nor do I play one on television, but I doubt that there's a religion out there that requires their followers to wear tights. There probably are religions that require their followers to cover their legs in public, which can be accomplished with a pair of pants.
I officiated a girls game involving a local Christan school a few years ago that had players wearing skirts. Odd looking, but legal.
I just realized that there are several straight lines here for Mark Padgett to take advantage of, but I'll leave them in to make my point.