Certified Automated Truck Scale or known as CAT Scale is a measuring unit for gross vehicle weight and individual axle weights and is delivered via scale ticket printout.

Heavy fines are very common back then because truck drivers had a hard time to know their true weight until its too late. See video below on how CAT Scale works.

1977 - CAT Scale was founded as the first fully automated platform scale and has hundreds of locations all over USA and Canada today.