The funds authorized in section 375.555 shall be expended by the county for job training programs or for jobs through public works projects submitted to the county by its departments and agencies and those of cities, towns, school districts, state and federal agencies, park reserve districts, and other special districts, including metropolitan agencies that are located totally or partially within the county. The funds shall be expended only for training programs or public works projects located within the county. The projects shall be beneficial to the submitting local unit and may include permanent improvements or maintenance of public property, residential weatherization programs, landscaping of public grounds or parks, planting or trimming trees, improving open space areas, playgrounds, and recreational facilities owned or operated by the sponsoring unit of government, and reclamation and reforestation. The sponsoring unit of government shall provide the administration, supervision, supplies, and materials for its training program or public works project. All funds available through the authority granted in section 375.555 shall be expended for wages and benefits for program participants except that up to two percent of the total amount shall be available to reimburse the county for its actual cost of administering the program.