; and (ii) for each eligible worker, shall not exceed 20 percent of the eligible costs of providing the wages described in subparagraph (B). (2) Limitation for duration of wages and compensation (A) In general Subject to subparagraph (B), an eligible cost related to wages and compensation for a program position is an expense related to the first 12 months of the program position, subject to section 5(e). (B) Extension A local board may extend the 12-month period described in subparagraph (A) for not more than an additional 12 months, subject to section 5(e), to the extent that such extension is necessary to cover the period of a program position that is part of an on-the-job training program that leads to a recognized postsecondary credential. (3) Supportive services and training services (A) Aggregate limit The eligible costs of providing, or facilitating the provision of, supportive services and training services to eligible workers shall, in total, not exceed 20 percent of the total eligible costs of providing the wages described in paragraph (1)(B) to those eligible workers. (B) Flexibility for individuals The limit in subparagraph (A) shall apply to the eligible costs for the total amount of supportive services and training services provided by a jobs program to all eligible workers, and shall not be construed to constitute a separate limit on the eligible costs for the supportive services and training services so provided to each eligible worker. (C) Modification The requirements of this paragraph may be modified under section 5(e). (4) Administration (A) Local boards The eligible costs incurred by a local board of administering a jobs program under this section shall not exceed 10 percent of the total eligible costs of providing the wages described in paragraph (1)(B) to all eligible workers served by the jobs program. (B) Secretary Of the maximum amount that the Secretary may make available under subparagraph (A) with respect to a jobs program, the Secretary may reserve not more than 10 percent to