§ 4015.
(b)
Considerations for rates
Such rates shall, insofar as practicable, be—
(1)
based on a consideration of the respective risks involved, including differences in risks due to land use measures, flood-proofing, flood forecasting, and similar measures;
(2)
adequate, on the basis of accepted actuarial principles, to provide reserves for anticipated losses, or, if less than such amount, consistent with the objective of making flood insurance available where necessary at reasonable rates so as to encourage prospective insureds to purchase such insurance and with the purposes of this chapter;
(3)
adequate, together with the fee under paragraph (1)(B)(iii) or (2) of
section 4014(a) of this title, to provide for any administrative expenses of the flood insurance and floodplain management programs (including the costs of mapping activities under
section 4101 of this title);
(5)
adequate, on the basis of accepted actuarial principles, to cover the average historical loss year obligations incurred by the National Flood Insurance Fund.
(e)
Annual limitation on premium increases
Except with respect to properties described under paragraph (2) of subsection (c), and notwithstanding any other provision of this chapter—
(1)
the chargeable risk premium rate for flood insurance under this chapter for any property may not be increased by more than 18 percent each year, except—
(A)
as provided in paragraph (4);
(C)
in the case of a property that—
(i)
is located in a community that has experienced a rating downgrade under the community rating system program carried out under
section 4022(b) of this title;
(ii)
is covered by a policy with respect to which the policyholder has—
(I)
decreased the amount of the deductible; or
(II)
increased the amount of coverage; or
(2)
the chargeable risk premium rates for flood insurance under this chapter for any properties initially rated under
section 4014(a)(2) of this title within any single risk classification, excluding properties for which the chargeable risk premium rate is not less than the applicable estimated risk premium rate under
section 4014(a)(1) of this title, shall be increased by an amount that results in an average of such rate increases for properties within the risk classification during any 12-month period of not less than 5 percent of the average of the risk premium rates for such properties within the risk classification upon the commencement of such 12-month period;
(3)
the chargeable risk premium rates for flood insurance under this chapter for any properties within any single risk classification may not be increased by an amount that would result in the average of such rate increases for properties within the risk classification during any 12-month period exceeding 15 percent of the average of the risk premium rates for properties within the risk classification upon the commencement of such 12-month period; and
(4)
the chargeable risk premium rates for flood insurance under this chapter for any properties described in subparagraphs (A) through (E) of
section 4014(a)(2) of this title shall be increased by 25 percent each year, until the average risk premium rate for such properties is equal to the average of the risk premium rates for properties described under paragraph (3).
(i)
Rates for properties newly mapped into areas with special flood hazards
Notwithstanding subsection (f), the premium rate for flood insurance under this chapter that is purchased on or after March 21, 2014—
(1)
on a property located in an area not previously designated as having special flood hazards and that, pursuant to any issuance, revision, updating, or other change in a flood insurance map, becomes designated as such an area; and
shall for the first policy year be the preferred risk premium for the property and upon renewal shall be calculated in accordance with subsection (e) of this section until the rate reaches the rate calculated under subsection (a)(1) of
section 4014 of this title.
([Pub. L. 90–448, title XIII, § 1308], Aug. 1, 1968, [82 Stat. 576]; [Pub. L. 93–234, title I, § 103], Dec. 31, 1973, [87 Stat. 978]; [Pub. L. 98–181, title I] [title IV, § 451(d)(1)], Nov. 30, 1983, [97 Stat. 1229]; [Pub. L. 101–508, title II, § 2302(e)(2)], Nov. 5, 1990, [104 Stat. 1388–24]; [Pub. L. 103–325, title V, § 572(a)], Sept. 23, 1994, [108 Stat. 2277]; [Pub. L. 108–264, title I, § 106], title II, § 209, June 30, 2004, [118 Stat. 724], 727; [Pub. L. 112–123, § 2(b)], May 31, 2012, [126 Stat. 365]; [Pub. L. 112–141, div. F, title II], §§ 100205(c), (d), 100207, 100211, 100238(b)(1), July 6, 2012, [126 Stat. 918], 919, 921, 958; [Pub. L. 113–89], §§ 4(a), 5–7, 11(a), 26(b), 28, 29, Mar. 21, 2014, [128 Stat. 1022], 1023, 1025, 1033.)