- (a) RWTS that comply with NSF International Standard 40 for Class I residential wastewater treatment systems shall be designed, constructed, and installed in accordance with this Section to serve facilities with a DDF less than or equal to 1,500 gpd.
- (b) RWTS shall only be used with DSE.
(c) RWTS shall bear one of the following to certify that the product is in accordance with NSF/ANSI Standard 40:
- (1) the NSF mark and the NSF listed model number; or
- (2) the certification mark and listed model number of a third-party certification program accredited by ANSI to certify RWTS in accordance with NSF/ANSI Standard 40.
- (d) For approval of an RWTS as a PIA System, a manufacturer shall apply in accordance with Section .1700 of this Subchapter.
History Note: Authority G.S. 130A-342;
Eff. January 1, 2024.