If a trustee determines that an allocation between principal and income required by section 30-3135, 30-3136, 30-3137, 30-3138, or 30-3141 is insubstantial, the trustee may allocate the entire amount to principal unless one of the circumstances described in subsection (c) of section 30-3119 applies to the allocation. This power may be exercised by a cotrustee in the circumstances described in subsection (d) of section 30-3119 and may be released for the reasons and in the manner described in subsection (e) of section 30-3119. An allocation is presumed to be insubstantial if:
Neb. Rev. Stat. §§ 30-3134