Section 63.1592 - Which General Provisions apply to my POTW treatment plant?(a) Table 1 to this subpart lists the General Provisions ( 40 CFR part 63, subpart A) which do and do not apply to POTW treatment plants.(b) Unless a permit is otherwise required by law, the owner or operator of a Group 1 POTW treatment plant which is not a major source is exempt from the permitting requirements established by 40 CFR part 70.