The seventh step of NFL tie-breaking procedures is to compare the combined rank for Points For and Points Allowed. I.E. if the Broncos scored the most points in the AFC but also allowed the most points respectively, they are ranked #1, and #16 respectively. Their cumulative rank would be 17. Then if the Patriots scored the fourth-most points in the AFC but allowed the second-most points scored against them, they would be ranked #4 and #15 respectively. The Patriots' cumulative rank would be 19.
But how do they judge it when two teams have scored the same number of points? In the example below, the Jets and the Dolphins have both allowed 10 points. Are both the Dolphins and the Jets ranked #1 for PA? Or maybe is the net points/differential the tie breaker for this ranking?
http://i.imgur.com/oNQwX9z.png
And if all else fails, how do I ask the NFL?