Subsitute Ref When Partner Doesn't Show Up?

[PIAA REF]

I would never allow someone that was not a certified ref to officiate a real game, if it was a scrimmage ok. In my district in PA (this may not be the same for all in PA) You are not permitted to ref a varsity game with less than 3 officials. You may finish with 2 if one gets hurt. For sub-varsity you MAY NOT start or finish a game with only one ref. For years if a ref didn't show we would do it solo and get double paid. By rule we are not suppose to do this anymore. We must tell them the game is not permitted to be played. I know that some just ref it by themselves but by rule we are not suppose to.