Officials said Wednesday that the masks will be delivered in the coming months, and are expected to reach an estimated 12 to 15 million vulnerable Americans.

Experts say that cloth face coverings are one of the best ways to prevent the spread of the coronavirus. Here are three tips to make safer, homemade masks.

Riders are already required to wear face coverings on subways, buses and railroads. Officials hope the new penalty will improve compliance and bring hesitant would-be passengers back on board.

The new policies follow similar moves by a growing number of retailers acting to fill a void left by local, state and federal authorities who have refused to set mandatory policies.