35 Ill. Adm. Code 807.209
Permit Revision
Section 807
Section 807.209 Permit
Revision
a) The agency shall revise any permit issued by it to make the
permit compatible with any relevant new regulations adopted by the Board.
b) The permittee may request modification of a permit at any time
by filing pursuant to Section 807.205 an application reflecting the
modification requested.