N.Y. Comp. Codes R. & Regs. tit. 12, § 38.9
(c) Each specific license continues in effect, beyond the expiration date if necessary, with respect to possession of radioactive material until the commissioner notifies the licensee in writing that the license is terminated. During this time, the licensee shall:
(d) Within 60 days of the occurrence of any of the following, each licensee shall provide notification to the department in writing of such occurrence, and either begin decommissioning its site, or any separate building or outdoor area that contains residual radioactivity so that the building or outdoor area is suitable for release in accordance with department requirements, or submit within 12 months of notification a decommissioning plan, if required by section 38.23(c) of this Part, and begin decommissioning upon approval of that plan if:
(e) Coincident with the notification required by subdivision (d) of this section, the licensee shall maintain in effect all decommissioning financial assurances established by the licensee pursuant to section 38.7 of this Part in conjunction with a license issuance or renewal or as required by this section. The amount of the financial assurance must be increased, or may be decreased, as appropriate, to cover the detailed cost estimate for decommissioning established pursuant to section 38.23(c) of this Part.
(f) The department may grant a request to extend the time periods established in subdivision (d) of this section if the department determines that this relief is not detrimental to the public health and safety and is otherwise in the public interest. The request must be submitted no later than 30 days before notification pursuant to subdivision (d) of this section. The schedule for decommissioning set forth in subdivision (d) of this section may not commence until the department has made a determination on the request.
(2) For decommissioning plans calling for completion of decommissioning later than 24 months after plan approval, the plan shall include a justification for the delay based on the criteria in subdivision (h) of this section.
(g)
(h) The department may approve a request for an alternative schedule for completion of decommissioning of the site or separate building or outdoor area, and license termination if appropriate, if the department determines that the alternative is warranted by consideration of the following:
(i) As the final step in decommissioning, the licensee shall:
(4) as appropriate:
(j) Specific licenses, including expired licenses, will be terminated by written notice to the licensee when the department determines that:
(2) a reasonable effort has been made to eliminate residual radioactive contamination, if present; and
(3)