; and (II) less than or equal to maximum amount allowable under paragraph (3)(A). (D) Identification of additional critical infrastructure sectors (i) Study Not later than 180 days after the date of enactment of this paragraph, the Administrator shall complete a study to identify any additional sectors to be included in the definition of the term critical infrastructure sector under this paragraph. (ii) Provision of loans prior to completion of study The Administrator may guarantee a loan made under this paragraph before the completion of the study required under clause (i). (iii) Additional critical infrastructure sectors The Administrator may, at any time, take such actions as are necessary to identify additional sectors to be included in the definition of the term critical infrastructure sector under this paragraph. (E) Definitions In this paragraph: (i) Covered applicant The term covered applicant means a business that— (I) has a site located in rural area industrial park, manufactures goods that are essential to critical infrastructure sectors at such site, and intends to expand such site for purposes of employing a larger workforce at such site; or (II) is developing a site located in a rural area industrial park to manufacture goods that are essential to critical infrastructure sectors at such site. (ii) Critical infrastructure sector The term critical infrastructure sector means— (I) each of the 16 critical infrastructure sectors designated in Presidential Policy Directive 21, titled Critical Infrastructure Security and Resilience and published on February 12, 2013; (II) any additional sectors identified pursuant to section 9002 of the National Defense Authorization Act for Fiscal Year 2021 ( 6 U.S.C. 652a )