In response to increased Arctic shipping traffic, the United States and Russian Federation have proposed voluntary two-way routing measures in the Bering Strait and Bering Sea. Located in U.S. and Russian Federation territorial waters off the coasts of Alaska and the Chukotskiy Peninsula, the routes are being recommended to help ships avoid the numerous shoals, reefs and islands outside the routes and to reduce the potential for marine casualties and environmental disasters.
Source: USCG
Link: 1/25/2018: U.S., Russia jointly propose Bering Strait routing measures