(a)Purpose of section. Sections 35.170 through 35.178 govern Public Water System Supervision Grants to States (as defined in section 1401 (13)(A) of the Safe Drinking Water Act) authorized under section 1443(a) of the Act.(b)Purpose of program. Public Water System Supervision Grants are awarded to carry out public water system supervision programs including implementation and enforcement of the requirements of the Act that apply to public water systems.(c)Associated program regulations. Associated program regulations are found in 40 CFR parts 141, 142, and 143.