A court statement said Judge Luis Alaez has asked the Adif officials, including the company's three most recent presidents, to come in for questioning as suspects between Oct. 9 and Dec. 11.
The officials also include board members and senior managers in charge of safety on the stretch near Santiago de Compostela where the crash occurred.
The statement said they, and potentially others from Adif, will be treated as suspects while the judge tries to determine whether the track was safe.
The train driver has admitted going too fast when the July 24 crash occurred and has been provisionally charged with multiple counts of negligent homicide.
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