; and (J) workforce development initiatives necessary to improve or maintain service. (2) No effect on other laws The use of funds from this section for operating costs of projects described in paragraph (1) may not affect the eligibility of such projects to receive funding from other sections of this chapter or title 23. (d) Requirement A preponderance of a grant received by a recipient under this section in a fiscal year shall be used for projects that benefit underserved communities or areas of persistent poverty. (e) Federal share (1) In general The Federal share of a project or program carried out using a grant awarded under this section shall be not greater than 50 percent. (2) Federal share for operating expenses In the case that a project includes both operating components funded from this section and non-operating components, the Federal share for operating components shall be 50 percent and for non-operating components shall be consistent with the requirements of the funding source for those components. (3) Increased federal share for certain areas Notwithstanding paragraph (2), the Federal share of an operating assistance component of a project or program carried out in an area of persistent poverty or an underserved community using a grant awarded under this section shall be not greater than 80 percent. (4) Federal share for Indian Tribes Notwithstanding paragraphs (1) through (3), for Indian Tribes receiving funding allocated under subsection (b)(1)(C), the Federal share of a project or program carried out using a grant awarded under this section shall be 100 percent. (5) In kind match Of the non-Federal share required under this subsection, 25 percent may be derived from amounts (other than amounts received from the Federal Transit Administration) expended for associated capital improvements related to a project or program carried out using a grant awarded under this section. (f) Period of availability An amount apportioned under this section may be obligated by the recipient for 2 years after the