The National Transportation Safety Board (NTSB) issued recommendations for oil-carrying trains on Thursday to prevent “major loss of life, property damage and environmental consequences” resulting from train accidents in populated areas.

In July, an oil train crash in Lac-Mégantic, Quebec killed 47 people. Two subsequent crashes in Alabama and North Dakota have raised concerns that increased oil-train traffic could lead to loss of life in the U.S.

Transportation of oil by train has increased in recent years due to the development of the land-locked Bakken Formation in North Dakota and Montana.

Read more about the NTSB recommendations through the NTSB press release or an article in the Minneapolis Star Tribune.