; and (2) specifies State implementation options and describes future milestones. 17. Set-aside for economic downturns Section 404(e) ( 42 U.S.C. 604(e) ) is amended to read as follows: (e) Deadlines for obligation and expenditures of funds by States (1) In general Except as provided in paragraph (2), a State to which funds are paid under section 403(a)(1) shall obligate the funds within 2 years after the date the funds are so paid, and shall expend the funds within 3 years after such date. (2) Exception for limited amount of funds set aside for future use A State to which funds are paid under section 403(a)(1) may reserve not more than 15 percent of the funds for future use in the State program funded under this part. . 18. Definitions related to use of funds Section 419 ( 42 U.S.C. 619 ) is amended by adding at the end the following: (6) Assistance The term assistance means cash, payments, vouchers, and other forms of benefits designed to meet a family's ongoing basic needs (such as for food, clothing, shelter, utilities, household goods, personal care items, and general incidental expenses). (7) Work supports The term work supports means assistance and non-assistance transportation benefits (such as the value of allowances, bus tokens, car payments, auto repair, auto insurance reimbursement, and van services provided in order to help families obtain, retain, or advance in employment, participate in work activities (as defined in section 407(d)), or as a non-recurrent, short-term benefit, including goods provided to individuals in order to help them obtain or maintain employment (such as tools, uniforms, fees to obtain special licenses, bonuses, incentives, and work support allowances and expenditures for job access). (8) Supportive services The term supportive services means services such as domestic violence services, and mental health, substance abuse and disability services, housing counseling services, and other family supports, except to the extent that the provision of the service would violate section