; (4) the deployment of metering technology; (5) training in asset management concepts, tools, and techniques of appropriate staff employed by— (A) the eligible entity; or (B) the small systems for which the grant was received; and (6) the development or deployment of other concepts, tools, or techniques that the Administrator may determine to be appropriate under the program. (e) Cost share The Federal share of a project carried out using a grant under the program shall not exceed 75 percent of the total cost of the project. (f) Authorization of appropriations There is authorized to be appropriated to carry out this section $5,000,000 for each of fiscal years 2021 through 2025. .