General rule

If—

(A) a qualified employer plan elects to allow employees to make voluntary employee contributions to a separate account or annuity established under the plan, and

(B) under the terms of the qualified employer plan, such account or annuity meets the applicable requirements of this section or section 408A for an individual retirement account or annuity,

then such account or annuity shall be treated for purposes of this title in the same manner as an individual retirement plan and not as a qualified employer plan (and contributions to such account or annuity as contributions to an individual retirement plan and not to the qualified employer plan). For purposes of subparagraph (B), the requirements of subsection (a)(5) shall not apply.