(4) Disaster recovery operations expenses The term disaster recovery operations expenses means the following amounts if paid or incurred in the ordinary course of a trade or business of the eligible business while the declaration with respect to a federally declared disaster is in effect: (A) Wages (as defined in section 3121(a)) and taxes imposed under section 3111. (B) Unemployment insurance contributions. (C) Health care costs. (D) Rent, lease, or mortgage costs, including property taxes. (E) Utilities. (5) Public health emergency expenses The term public health emergency expenses means amounts described in subparagraphs (A) through (E) of paragraph (4) if paid or incurred in the ordinary course of a trade or business of the eligible business while a public health emergency declaration is in effect. (6) Federally declared disaster The term federally declared disaster has the meaning given such term by section 165(i)(5). (7) Public health emergency declaration The term public health emergency declaration means any declaration of a public health emergency by the Secretary of Health and Human Services under section 319 of the Public Health Service Act ( 42 U.S.C. 247d ). (8) Account beneficiary The term account beneficiary means the eligible business on whose behalf the small business emergency savings account was established. (e) Treatment of account (1) In general A small business emergency savings account is exempt from taxation under this subtitle unless such account has ceased to be a small business emergency savings account. Notwithstanding the preceding sentence, any such account is subject to the taxes imposed by section 511 (relating to imposition of tax on unrelated business income of charitable, etc. organizations). (2) Account terminations Rules similar to the rules of paragraphs (2) and (4) of section 408(e) shall apply to small business emergency savings accounts, and any amount treated as distributed under such rules shall be treated as not used to pay qualified disaster and public health