In this article, unless the context or subject matter otherwise requires:
Except for cash and certificates of deposit of a commercial bank, any particular investment within the classes of investments authorized by this section is subject to disqualification for one or more licensees for the purpose of this article, if unsatisfactory for any reason in the opinion of the superintendent. Notwithstanding the foregoing provisions of this section, the superintendent shall have the power to limit, with respect to any particular licensee or all licensees, the extent to which any class of investments authorized by this section, except for cash and certificates of deposit of a commercial bank, may be considered a permissible investment.
N.Y. Banking Law § 640