# 35.630 Purpose.(a) *Purpose of section.* Sections 35.630 through 35.638 govern nonpoint source management grants to eligible Tribes and Intertribal Consortia under sections 319(h) and 518(f) of the Clean Water Act.(b) *Purpose of program.* Nonpoint source management grants may be awarded for the implementation of EPA-approved nonpoint source management programs, including ground-water quality protection activities that will advance the approved nonpoint source management program.