(d) Option to escrow--(1) In general. An FDIC-supervised institution, or a servicer acting on its behalf, shall offer and make available to the borrower the option to escrow all premiums and fees for any flood insurance required under § 339.3 for any loan secured by residential improved real estate or a mobile home that is outstanding on January 1, 2016, or July 1 of the first calendar year in which the FDIC-supervised institution has had a change in status pursuant to paragraph (c)(2) of this section, unless:
(i) The loan or the FDIC-supervised institution qualifies for an exception from the escrow requirement under paragraphs (a)(2) or (c) of this section, respectively;
(ii) The borrower is already escrowing all premiums and fees for flood insurance for the loan; or
(iii) The FDIC-supervised institution is required to escrow flood insurance premiums and fees pursuant to paragraph (a) of this section.
If you are not exempt from the flood insurance premium escrow requirements then I would have to opine the above cite does not give you the option to cancel an existing flood insurance premium escrow. But the risk is yours to take.
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The opinions expressed are mine and they are not to be taken as legal advice.