; (vi) providing supportive services to eligible youth, or connecting such youth to supportive services provided by another entity, to enable participation in the program; (vii) integration of services provided by the program with youth development programs, secondary school programs, youth workforce investment activities under chapter 2 of subtitle B of title I of the Workforce Innovation and Opportunity Act ( 29 U.S.C. 3161 et seq.), and skills training programs funded by the State or Federal Government; (viii) referring at least 30 percent of eligible youth participating in the program from or to providers of youth services, adult employment and training services, vocational rehabilitation services, and adult education and literacy services under the Workforce Innovation and Opportunity Act ( 29 U.S.C. 3101 et seq.), or skills training programs funded by the State or Federal Government; (ix) a rigorous evaluation of such program using research approaches appropriate to the level of development and maturity of the program, including random assignment or quasi-experimental impact evaluations, implementation evaluations, pre-experimental studies, and feasibility studies; and (x) commitment and support from mayors or county executives. (C) Priority In carrying out a year-round employment program receiving funding under this section, a local area shall give priority to year-round employment opportunities— (i) in existing or emerging in-demand industry sectors or occupations; or (ii) that meet community needs in the public, private, or nonprofit sector. (e) Performance accountability (1) In general For activities funded under this section, the primary indicators of performance shall include— (A) the performance metrics described in clauses (i)(III), (i)(V), (ii)(I), and (ii)(II) of section 116(b)(2)(A) of the Workforce Innovation and Opportunity Act ( 29 U.S.C. 3141(b)(2)(A) )