public water system supervision program

The term "public water system supervision program" means a program for the adoption and enforcement of drinking water regulations (with such variances and exemptions from such regulations under conditions and in a manner which is not less stringent than the conditions under, and the manner in, which variances and exemptions may be granted under sections 300g–4 and 300g–5 of this title) which are no less stringent than the national primary drinking water regulations under section 300g–1 of this title, and for keeping records and making reports required by section 300g–2(a)(3) of this title.