(38)The final FRTB standards in relation to the boundary between the trading book and the non-trading book should be implemented in Union law, as they have significant bearing on the calculation of the own funds requirements for market risk. In line with the Basel III standards, the implementation of the boundary requirements should include the lists of instruments to be assigned to the trading book or the non-trading book, as well as the derogation allowing institutions to assign, subject to the approval of the competent authority, certain instruments usually held in the trading book, including listed equities, to the non-trading book, where positions in those instruments are not held with trading intent or do not hedge positions held with trading intent.