The U.S. Postal Service is asking that walkways, sidewalks and approaches to mailboxes be kept clear of snow and ice so letter carriers can provide safe and timely mail delivery.

“Mounds of snow and patches of ice in front of mailboxes create havoc for carriers trying to safely deliver the mail,” USPS spokesman Paul Smith said. “Please do your best to ensure you provide a clear path to the mailboxes — including steps, porches and walkways. Customers receiving curbside delivery should also clear access to their mailboxes for carriers and their vehicles.”

Carriers cannot attempt door delivery when there is a heavy buildup of snow.

If mailboxes are blocked off and conditions are difficult, letter carriers must always consider safety and accessibility first. Letter carriers are instructed to not deliver to mailboxes and locations which are too hazardous or unsafe to access.