What does cm mean on NFL referee hat?

The NFL rule book defines the abbreviation “ cm simply as “inches.” A referee’s helmet typically measures between 22 and 24 inches in circumference. The referee’s helmet measure can vary, but the official NFL rule book says it must be no more than 25.5 inches in circumference.

What does cm mean on NFL referee helmet?

The size of the referee’s helmet is measured in centimeters. A referee’s helmet is usually about 22-23cm in height so the height of the letters on the helmet are a little lower than you might expect.

What does m mean on a football referee hat?

A small letter “m” refers to the organization itself. The NFL Referee Organization (NFL RO) was founded in 1921. The organization is made up of eight full-time referees who are responsible for officiating games, training new referees, and developing NFL rules.

What does CM stand for on referee hat?

The C and M on the referees' hats stand for the letters C and M written in the capitalized block letters. This is a code to represent the NFL's Referee Department. The C and M also stand for Chris Myers and Mike Myers, who are the NFL's Vice Presidents of Officiating.

What does CM mean on NFL referee hat?

Every NFL referee wears a different style of hat. Some referees have the letters CM embroidered on the front. However, the NFL official referee hat, also known as the “Crown”, does not have the letters CM on it. The NFL referees use the abbreviation for centimeters on their hats to remind themselves of the proper yard line.