N.Y. Comp. Codes R. & Regs. tit. 6, § 645-5.9 – Applications for permit renewals or modifications.

(a) A permittee may apply to the commission for renewal or modification of a permit. Such application shall:
1. (1) provide information supporting the action sought;
2. (2) shall include the payment of any fees required; and
3. (3) if for a modification, shall include a statement of necessity or reasons for the modification.
(b) The commission may determine that any application for renewal or modification shall be treated as a new application for a permit if:
1. (1) the application involves a material change in existing permit conditions or in the scope of the permitted actions;
2. (2) there has been a material change in environmental conditions, relevant technology or applicable law or regulations since the issuance of the existing permit; or
3. (3) an opportunity for public comment and/or hearing is required by law or is deemed necessary by the commission.
  In such cases, the commission shall mail to the applicant notice of such determination and process the application as a new application.
(c) The commission shall notify the applicant by mail of its decision. If the decision is to deny the application, the applicant may, within 15 calendar days of the date of the denial, request that a hearing be held.