; and (BB) does not unduly duplicate or overlap with any other activity or program carried out by any other Federal agency. (II) Data from participating entities Not later than 1 year after the date of enactment of the 21st Century Conservation Service Corps Act of 2017 , and annually thereafter, the head of each participating entity shall submit to the Chief Executive Officer of the Corporation for National and Community Service the data described in items (aa) through (dd) of subclause (I). (III) Data collection The Chief Executive Officer of the Corporation for National and Community Service may coordinate with individual 21CSC organizations to improve the collection of the required data described in items (aa) through (dd) of subclause (I). (ii) Comptroller General reports (I) In general The Comptroller General of the United States shall prepare and submit to Congress— (aa) not later than 3 years after the date of submission of the first report under clause (i)(I), an interim report; and (bb) not later than 5 years after the date of submission of the first report under that clause, a final report. (II) Contents The interim and final reports referred to in subclause (I) shall include— (aa) an assessment, based on the data described in items (aa) through (dd) of clause (i)(I), of the effectiveness of 21CSC organizations in achieving the purposes of this title in a manner that— (AA) is cost-effective; and (BB) does not unduly duplicate or overlap with any other activity or program carried out by any other Federal agency