Massachusetts motorists begin facing fines this week for violating the state's new distracted driving law, which bans all use of phones behind the wheel except for a single tap or swipe to active hands-free mode.

Starting April 1, drivers face fines of $100 for a first offense, $250 for a second offense and $500 for a third offense.

Second and subsequent offenses will require drivers to complete training programs, and third and subsequent offenses are surchargeable for insurance.

Drivers have been operating under a grace period. The law replaced a ban on texting while driving that law enforcement deemed unenforceable. It took effect Feb. 23, but through March 31, police have only been issuing warnings.

Information from State House News Service