; (II) housing prices in such county or counties have declined significantly, as measured by the applicable housing price index of the Federal Housing Finance Agency; or (III) available credit for the purchase of housing or such other economic conditions exist sufficient to evidence a significant contraction of capital in such county or counties, as measured by a metric identified by the Board, in consultation with the Chief Risk Officer, in a written notice made publicly available, and provided to the Congress, in advance of such determination. (ii) Conditions of termination Upon making a determination under clause (i), the Board, in consultation with the Chief Risk Officer, shall also identify measurable criteria for determining that the conditions determined under clause (i) for such county or counties have ceased to exist. (iii) Notice to Congress Upon making a determination under clause (i), the Board shall provide written notice to the Congress of such determination and the specific measurable criteria identified pursuant to clause (ii). (iv) Limitation The Board may not, pursuant to the authority under this subparagraph— (I) reduce premiums required to be paid for mortgage insurance under this title by more than 50 basis points from the premiums charged, immediately before the determination under this subparagraph was made for such county or counties, for mortgage insurance for mortgages on properties located in such county or counties; (II) increase the limitation under this title on the amount of the maximum principal obligation of a mortgage that may be insured