The law, which was signed by New York Gov. Andrew Cuomo in July, “is designed to reduce the risk of pedestrian deaths and injuries which can occur when truck drivers are unable to see persons directly in front of their vehicles,” the legislation explains.

The new mirrors are required only for commercial vehicles weighing at least 26,000 pounds that operate on the streets of New York City (with the exception of expressways) and are registered in the state of New York.

The mirrors allow the driver to see any person at least 3 feet tall that is crossing the front of the vehicle at least 1 foot away. These same mirrors have been a requirement for school buses since the 1970s.