This season is a rule change year, which means all referees have to attend a refresher clinic.
Basically a rule change year is a year that a rule is changed or there is a new rule introduced. These rule change years occur every two years.
The last rule change was introducing the move it or lose it rule in 2013.
I’m not sure what the rule change is this year, but I will find out at the refresher clinic that I have to go to. Once I find out when the refresher clinic is and what this years rule change is I will make a blog post about it.