N.J. Admin. Code § 7:9A-7.5
A greywater system may be approved by the administrative authority provided that all of the requirements of these standards are satisfied and provided that an acceptable means for disposal of the blackwater from the building served is indicated in the system design. When the blackwater from the building served by a greywater system is to be disposed of into a waterless toilet, a variance from the Uniform Construction Code, Plumbing subcode, 5:23-3.15, must be obtained by the applicant prior to approval of the greywater system by the administrative authority and the volume of sanitary sewage to be used in the design of the greywater system shall be determined as prescribed in 7:9A-7.4. When the blackwater from the building served by a greywater system is to be disposed of into a separate subsurface sewage disposal system, the blackwater system shall meet all the requirements of this chapter and the volume of sanitary sewage used in the design of both the greywater system and the blackwater system shall be a minimum of 75 percent of the volume of sanitary sewage determined as prescribed in 7:9A-7.4.
N.J. Admin. Code § 7:9A-7.5
See: 43 N.J.R. 478(a), 44 N.J.R. 1047(a).
Substituted "subcode" for "sub-code" and updated the first N.J.A.C. reference.