Conditions or limitations in permits issued under the Clean Water Act, Section
402 or 404, that, if violated, could result in the issuance of a compliance
order or initiation of a civil or criminal action under federal or applicable
state laws. If a permit has not been issued, the term includes any requirement,
that, in the regional administrator's (RA's) judgment, would be
included in the permit when issued. Where no permit applies, the term includes
any requirement that the RA determines is necessary for the best practical
waste treatment technology to meet applicable criteria.