Overage days are declared in PBS during the bid, and can be seen on your results tab.

Basically, when a coverage day is declared, they disregard your bid for that day, and put you to work. Happened in March and April, completely disregarded what I bid for, and forced me into what the company wanted. To make matters worse, when the bids were released, the days I wanted off were green, as well as the days I was forced to work (mostly Fr-Mo).

If the company keeps this up, it will totally negate being able to bid 17 days in a row when 25.R goes into effect.