Section 270.31a-4 - Records to be maintained and preserved by registered investment companies relating to fair value determinations(a)Appropriate documentation. Every registered investment company shall maintain appropriate documentation to support fair value determinations made pursuant to § 270.2a-5 for at least six years from the time that the determination was made, the first two years in an easily accessible place.(b)Records when designating. If the board of a registered investment company has designated performance of fair value determinations to a valuation designee under § 270.2a-5(b) , in addition to the records required in paragraph (a) of this section, the registered investment company must maintain copies of: (1) The reports and other information provided to the board as required under § 270.2a-5(b)(1) for at least six years after the end of the fiscal year in which the documents were provided to the board, the first two years in an easily accessible place; and(2) A specified list of the investments or investment types whose fair value determination has been designated to the valuation designee to perform pursuant to § 270.2a-5(b) for a period beginning with the designation and ending at least six years after the end of the fiscal year in which the designation was terminated, in an easily accessible place until two years after such termination.(c)Party to maintain. If the board of a registered investment company has designated performance of fair value determinations to its investment adviser under § 270.2a-5(b) , such investment adviser shall maintain the records required by this section. If the investment adviser is not so designated, the fund shall maintain such records.