and supportive services provided for an eligible individual resulted in employment (subsidized or unsubsidized) for the eligible individual, or can demonstrate good cause for why the job placement or employment did not occur, which may include the failure of an employer or an eligible individual to carry out the employer's or individual's commitments to the State program. (2) Tier-2 or tier-3 practices Beginning with the 21st fiscal year quarter for which the State carries out the program funded under this title, not less than 50 percent of the total amount expended by the State for the quarter shall be for employment services, training and other services and activities, and supportive services provided in accordance with practices that meet the requirements for being considered a tier-2 or tier-3 practice. (3) Periods of economic downturn The Secretary may waive any of the limitations on eligible expenditures under paragraphs (1) and (2) with respect to 1 or more State programs funded under this title during any period of economic downturn in the State. (c) Evaluations A State shall be eligible to receive a payment under section 1304 for budgeted expenditures attributable to evaluating the State program funded under this title if— (1) the State submits to the Secretary a description of and budget for the proposed evaluation