A bus safety website run by the U.S. Department of Transportation said Mi Joo has six buses, none of which have been involved in any accidents in at least the past two years.

A spokesman for the NTSB, Peter Knudson, said seatbelts aren’t required on such buses. ‘‘We have been concerned about this for some time,’’ Knudson said.

The local Red Cross shelter has been offering food, clothing and hotel arrangements for survivors as they are released from the hospital. Passengers’ relatives also have gone to the shelter, seeking information about their loved ones.

Jake Contor, a Pendleton resident who speaks Korean and helped translate for the Red Cross, said he had spoken with several of the survivors.

‘‘The stories have been fairly consistent: braking, swerving, sliding on the ice, hitting the guardrail, then sliding down the embankment,’’ Contor said.

He said the victims told him the bus left Boise, Idaho, on Sunday morning and was supposed to arrive in Vancouver that night. The survivors who spoke to Contor were seated at the back of the bus and said it appeared that the front and center of the coach sustained the most damage.

The interstate links Boise and Portland through the Blue Mountains and the Columbia Gorge.

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Online:

http://www.oregon.gov/OSP

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